385 lines
16 KiB
MySQL
385 lines
16 KiB
MySQL
-- IDEMPIERE-3862 ORACLE - Update datatype NVARCHAR2 to VARCHAR2
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-- Script to change non-core tables and columns
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-- NOTE: if you prefer to do it manually:
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--- * change the dryrun variable to Y
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-- * capture the output of running this script in a file and edit it
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-- * verify and execute
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SET ECHO OFF
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SET SERVEROUTPUT ON SIZE 1000000
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SET PAGESIZE 999
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SET LINESIZE 32000
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/* replace all NVARCHAR2 and VARCHAR2...BYTE columns to VARCHAR2...CHAR */
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DECLARE
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old_table varchar2(128) := '^';
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old_idx varchar2(128) := '^';
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sql_drp_idxs varchar2(32767) := ''; -- drop indexes
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sql_cre_idxs varchar2(32767) := ''; -- create indexes
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sql_cre_comma varchar2(1) := ''; -- create indexes
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sql_cre_close varchar2(14) := ');';
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sql_add_cols varchar2(4000) := ''; -- add tmp columns
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sql_nul_cols varchar2(4000) := ''; -- make columns nullable
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sql_upd_cols varchar2(4000) := ''; -- update tmp=old, old=null
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sql_mod_cols varchar2(4000) := ''; -- make all columns varchar2
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sql_upb_cols varchar2(4000) := ''; -- update back old=tmp (restore)
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sql_nnl_cols varchar2(4000) := ''; -- make back columns not null
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sql_drp_cols varchar2(4000) := ''; -- drop tmp columns
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sql_add_comma varchar2(4000) := '';
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sql_nul_comma varchar2(4000) := '';
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sql_upd_comma varchar2(4000) := '';
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sql_mod_comma varchar2(4000) := '';
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sql_upb_comma varchar2(4000) := '';
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sql_nnl_comma varchar2(4000) := '';
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sql_drp_comma varchar2(4000) := '';
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sql_com_view varchar2(4000) := '';
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idx integer;
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tmpcolname varchar2(128);
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dryrun varchar2(1) := 'N'; -- change this to 'Y' to generate the script to execute, 'N' to execute immediate
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BEGIN
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DBMS_OUTPUT.put_line(chr(10)||'-- Dropping functional based indexes and indexes unique where one of the columns to be modified is part');
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FOR i IN (
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SELECT ui.table_name, ui.index_name, ui.uniqueness, ui.index_type, uic.column_position, uic.column_name, uie.column_expression, uic.descend, uc.constraint_type
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FROM user_indexes ui
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JOIN user_ind_columns uic ON (ui.index_name= uic.index_name)
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LEFT JOIN user_ind_expressions uie ON (ui.index_name=uie.index_name AND uic.column_position=uie.column_position)
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LEFT JOIN user_constraints uc ON (ui.index_name=uc.index_name)
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WHERE ui.index_name IN (
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SELECT ui.index_name
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FROM user_indexes ui
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JOIN user_ind_columns uic ON (ui.index_name= uic.index_name)
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WHERE EXISTS (
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SELECT 1
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FROM user_tab_columns utc
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WHERE data_type = 'NVARCHAR2'
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AND table_name IN (SELECT table_name FROM user_tables)
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AND utc.table_name=ui.table_name
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AND utc.column_name=uic.column_name
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)
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AND ui.uniqueness='UNIQUE'
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AND ui.index_name IN (SELECT index_name FROM user_ind_columns GROUP BY index_name HAVING count(*)>1)
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UNION
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SELECT ui.index_name
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FROM user_indexes ui
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JOIN user_ind_columns uic ON (ui.index_name= uic.index_name)
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WHERE EXISTS (
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SELECT 1
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FROM user_tab_columns utc
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WHERE (data_type = 'NVARCHAR2' OR (data_type='VARCHAR2' AND char_used='B'))
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AND table_name IN (SELECT table_name FROM user_tables)
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AND utc.table_name=ui.table_name
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)
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AND ui.index_type!='NORMAL'
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)
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ORDER BY ui.table_name, ui.index_name, uic.column_position
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) LOOP
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IF (old_idx = i.index_name)
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THEN
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/* new column in same index */
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sql_cre_comma := ',';
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ELSE
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/* This block is repeated exactly the same below, changes here must be done also there */
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IF (old_idx != '^')
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THEN
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/* close command */
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sql_cre_idxs := sql_cre_idxs || sql_cre_close;
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END IF;
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/* new index */
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old_idx := i.index_name;
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IF (i.constraint_type IN ('U','P'))
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THEN
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sql_drp_idxs := sql_drp_idxs || 'ALTER TABLE '||i.table_name||' DROP CONSTRAINT '||i.index_name||';';
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sql_cre_idxs := sql_cre_idxs || 'ALTER TABLE '||i.table_name||' ADD CONSTRAINT '||i.index_name||CASE WHEN i.constraint_type='U' THEN ' UNIQUE (' ELSE ' PRIMARY KEY (' END;
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sql_cre_close := ') USING INDEX;';
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ELSE
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sql_drp_idxs := sql_drp_idxs || 'DROP INDEX '||i.index_name||';';
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sql_cre_idxs := sql_cre_idxs || 'CREATE'||CASE WHEN i.uniqueness='UNIQUE' THEN ' UNIQUE' ELSE '' END||' INDEX '||i.index_name||' ON '||i.table_name||'(';
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sql_cre_close := ');';
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END IF;
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sql_cre_comma := '';
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END IF;
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sql_cre_idxs := sql_cre_idxs || sql_cre_comma || CASE WHEN i.column_expression IS NOT NULL THEN i.column_expression ELSE i.column_name END;
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END LOOP;
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/* This block is repeated exactly the same above, changes here must be done also there */
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IF (old_idx != '^')
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THEN
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/* close command */
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sql_cre_idxs := sql_cre_idxs || sql_cre_close;
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END IF;
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IF (sql_drp_idxs != ';')
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THEN
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FOR s IN (SELECT regexp_substr(sql_drp_idxs,'[^;]+', 1, level) AS cmd FROM DUAL
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CONNECT BY regexp_substr(sql_drp_idxs, '[^;]+', 1, level) is not null
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) LOOP
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DBMS_OUTPUT.put_line(s.cmd || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE s.cmd;
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END IF;
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END LOOP;
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END IF;
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DBMS_OUTPUT.put_line(chr(10)||'-- Converting all VARCHAR2...BYTE to VARCHAR2..CHAR');
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old_table := '^';
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FOR c IN (
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SELECT table_name, column_name, data_type, char_length, char_used, nullable, data_default
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FROM user_tab_columns
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WHERE data_type = 'VARCHAR2' AND char_used='B'
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AND table_name IN (SELECT table_name FROM user_tables)
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-- AND table_name LIKE 'AD_CHART%' -- uncomment if you want to test with a smaller set of tables
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ORDER BY table_name, column_name
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) LOOP
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IF (old_table = c.table_name)
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THEN
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/* new column in same table */
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idx := idx + 1;
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sql_mod_comma := ',';
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ELSE
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/* This block is repeated exactly the same below, changes here must be done also there */
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IF (old_table != '^')
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THEN
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/* close and execute commands */
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sql_mod_cols := sql_mod_cols || ')';
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DBMS_OUTPUT.put_line(sql_mod_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_mod_cols;
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END IF;
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END IF;
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/* new table */
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DBMS_OUTPUT.put_line(chr(10)||'-- Processing table ' || c.table_name);
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old_table := c.table_name;
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idx := 1;
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sql_mod_cols := 'ALTER TABLE '||c.table_name||' MODIFY (';
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sql_mod_comma := '';
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END IF;
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sql_mod_cols := sql_mod_cols || sql_mod_comma || c.column_name || ' VARCHAR2(' || c.char_length || ' CHAR)';
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END LOOP;
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/* This block is repeated exactly the same above, changes here must be done also there */
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IF (old_table != '^')
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THEN
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/* close and execute commands */
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sql_mod_cols := sql_mod_cols || ')';
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DBMS_OUTPUT.put_line(sql_mod_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_mod_cols;
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END IF;
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END IF;
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DBMS_OUTPUT.put_line(chr(10)||'-- Converting all NVARCHAR2 to VARCHAR2..CHAR');
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old_table := '^';
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FOR c IN (
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SELECT table_name, column_name, data_type, char_length, char_used, nullable, data_default
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FROM user_tab_columns
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WHERE data_type = 'NVARCHAR2'
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AND table_name IN (SELECT table_name FROM user_tables)
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-- AND table_name LIKE 'A_ASSET_GR%' -- uncomment if you want to test with a smaller set of tables
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ORDER BY table_name, column_name
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) LOOP
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IF (old_table = c.table_name)
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THEN
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/* new column in same table */
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idx := idx + 1;
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sql_add_comma := ',';
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IF (sql_nul_cols NOT LIKE '%(' AND sql_nul_cols NOT LIKE '%,')
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THEN
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sql_nul_comma := ',';
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END IF;
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sql_upd_comma := ',';
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sql_mod_comma := ',';
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sql_upb_comma := ',';
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IF (sql_nnl_cols NOT LIKE '%(' AND sql_nnl_cols NOT LIKE '%,')
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THEN
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sql_nnl_comma := ',';
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END IF;
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sql_drp_comma := ',';
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ELSE
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/* This block is repeated exactly the same below, changes here must be done also there */
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IF (old_table != '^')
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THEN
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/* close and execute commands */
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sql_add_cols := sql_add_cols || ')';
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DBMS_OUTPUT.put_line(sql_add_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_add_cols;
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END IF;
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IF (sql_nul_cols NOT LIKE '%(')
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THEN
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sql_nul_cols := sql_nul_cols || ')';
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DBMS_OUTPUT.put_line(sql_nul_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_nul_cols;
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END IF;
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END IF;
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-- sql_upd_cols := sql_upd_cols;
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DBMS_OUTPUT.put_line(sql_upd_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_upd_cols;
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END IF;
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sql_mod_cols := sql_mod_cols || ')';
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DBMS_OUTPUT.put_line(sql_mod_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_mod_cols;
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END IF;
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-- sql_upb_cols := sql_upb_cols;
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DBMS_OUTPUT.put_line(sql_upb_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_upb_cols;
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END IF;
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IF (sql_nnl_cols NOT LIKE '%(')
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THEN
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sql_nnl_cols := sql_nnl_cols || ')';
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DBMS_OUTPUT.put_line(sql_nnl_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_nnl_cols;
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END IF;
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END IF;
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sql_drp_cols := sql_drp_cols || ')';
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DBMS_OUTPUT.put_line(sql_drp_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_drp_cols;
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END IF;
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END IF;
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/* new table */
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DBMS_OUTPUT.put_line(chr(10)||'-- Processing table ' || c.table_name);
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old_table := c.table_name;
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idx := 1;
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sql_add_cols := 'ALTER TABLE '||c.table_name||' ADD (';
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sql_nul_cols := 'ALTER TABLE '||c.table_name||' MODIFY (';
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sql_upd_cols := 'UPDATE '||c.table_name||' SET ';
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sql_mod_cols := 'ALTER TABLE '||c.table_name||' MODIFY (';
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sql_upb_cols := 'UPDATE '||c.table_name||' SET ';
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sql_nnl_cols := 'ALTER TABLE '||c.table_name||' MODIFY (';
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sql_drp_cols := 'ALTER TABLE '||c.table_name||' DROP (';
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sql_add_comma := '';
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sql_nul_comma := '';
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sql_upd_comma := '';
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sql_mod_comma := '';
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sql_upb_comma := '';
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sql_nnl_comma := '';
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sql_drp_comma := '';
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END IF;
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tmpcolname := 'tmp_col_'||idx||'_tmp';
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sql_add_cols := sql_add_cols || sql_add_comma || tmpcolname || ' VARCHAR2(' || c.char_length || ' CHAR)';
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IF (c.nullable = 'N')
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THEN
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sql_nul_cols := sql_nul_cols || sql_nul_comma || c.column_name || ' ' || c.data_type || '(' || c.char_length || ') NULL';
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END IF;
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sql_upd_cols := sql_upd_cols || sql_upd_comma || tmpcolname || '=' || c.column_name || ',' || c.column_name || '=NULL';
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sql_mod_cols := sql_mod_cols || sql_mod_comma || c.column_name || ' VARCHAR2(' || c.char_length || ' CHAR)';
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IF (c.data_default IS NOT NULL AND c.data_default != 'NULL')
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THEN
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sql_mod_cols := sql_mod_cols || ' DEFAULT ' || c.data_default;
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END IF;
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sql_upb_cols := sql_upb_cols || sql_upb_comma || c.column_name || '=' || tmpcolname;
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IF (c.nullable = 'N')
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THEN
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sql_nnl_cols := sql_nnl_cols || sql_nnl_comma || c.column_name || ' VARCHAR2(' || c.char_length || ' CHAR)';
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IF (c.data_default IS NOT NULL AND c.data_default != 'NULL')
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THEN
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sql_nnl_cols := sql_nnl_cols || ' DEFAULT ' || c.data_default;
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END IF;
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sql_nnl_cols := sql_nnl_cols || ' NOT NULL';
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END IF;
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sql_drp_cols := sql_drp_cols || sql_drp_comma || tmpcolname;
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END LOOP;
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/* This block is repeated exactly the same above, changes here must be done also there */
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IF (old_table != '^')
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THEN
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/* close and execute commands */
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sql_add_cols := sql_add_cols || ')';
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DBMS_OUTPUT.put_line(sql_add_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_add_cols;
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END IF;
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IF (sql_nul_cols NOT LIKE '%(')
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THEN
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sql_nul_cols := sql_nul_cols || ')';
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DBMS_OUTPUT.put_line(sql_nul_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_nul_cols;
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END IF;
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END IF;
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-- sql_upd_cols := sql_upd_cols;
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DBMS_OUTPUT.put_line(sql_upd_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_upd_cols;
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END IF;
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sql_mod_cols := sql_mod_cols || ')';
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DBMS_OUTPUT.put_line(sql_mod_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_mod_cols;
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END IF;
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-- sql_upb_cols := sql_upb_cols;
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DBMS_OUTPUT.put_line(sql_upb_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_upb_cols;
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END IF;
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IF (sql_nnl_cols NOT LIKE '%(')
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THEN
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sql_nnl_cols := sql_nnl_cols || ')';
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DBMS_OUTPUT.put_line(sql_nnl_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_nnl_cols;
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END IF;
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END IF;
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sql_drp_cols := sql_drp_cols || ')';
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DBMS_OUTPUT.put_line(sql_drp_cols || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_drp_cols;
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END IF;
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END IF;
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DBMS_OUTPUT.put_line(chr(10)||'-- Recreating the dropped indexes');
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IF (sql_cre_idxs != ';')
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THEN
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FOR s IN (SELECT regexp_substr(sql_cre_idxs,'[^;]+', 1, level) AS cmd FROM DUAL
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CONNECT BY regexp_substr(sql_cre_idxs, '[^;]+', 1, level) is not null
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) LOOP
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DBMS_OUTPUT.put_line(s.cmd || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE s.cmd;
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END IF;
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END LOOP;
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END IF;
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DBMS_OUTPUT.put_line(chr(10)||'-- Recompiling views affected');
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FOR c IN (
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SELECT DISTINCT table_name
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FROM user_tab_columns
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WHERE (data_type = 'NVARCHAR2' OR (data_type = 'VARCHAR2' AND char_used='B'))
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AND table_name IN (SELECT view_name FROM user_views)
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ORDER BY table_name
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) LOOP
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sql_com_view := 'ALTER VIEW '||c.table_name||' COMPILE';
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DBMS_OUTPUT.put_line(sql_com_view || ';');
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IF (dryrun != 'Y')
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THEN
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EXECUTE IMMEDIATE sql_com_view;
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END IF;
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END LOOP;
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END;
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/
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SELECT register_migration_script('202008040114_IDEMPIERE-3862.sql') FROM dual
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;
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