101 lines
3.0 KiB
MySQL
101 lines
3.0 KiB
MySQL
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/**
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* -- Change Key Information
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*/
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---------------------------------------------------------------------
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/*-- Preparation */
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DROP TABLE Temp_Constraints
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/
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CREATE TABLE Temp_Constraints AS
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SELECT Constraint_Name, Table_Name, Column_Name
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FROM User_Cons_Columns WHERE 1=2
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/
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ALTER TABLE Temp_Constraints ADD Constraint_Type CHAR(1)
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/
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/**/
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---------------------------------------------------------------------
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DECLARE
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p_KeyName VARCHAR2(50) := UPPER('GL_Category_ID');
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--
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-- p_SetInfo VARCHAR(60) := 'C_TaxCategory_ID+999900';
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-- p_WhereInfo VARCHAR(60) := '<105';
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p_SetInfo VARCHAR(60) := '0';
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p_WhereInfo VARCHAR(60) := '=105';
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p_execute BOOLEAN := TRUE;
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-----------------------------------------------------------------
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v_Cmd VARCHAR2(2000);
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-- First PK then R(FK) records
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CURSOR CUR_ConstraintsPR IS
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SELECT * FROM Temp_Constraints ORDER BY 4;
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-- First R(FK) then PKrecords
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CURSOR CUR_ConstraintsRP IS
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SELECT * FROM Temp_Constraints ORDER BY 4 DESC;
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BEGIN
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-- Create Temp Table Content
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DELETE Temp_Constraints;
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--
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INSERT INTO Temp_Constraints
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SELECT Constraint_Name, Table_Name, Column_Name, NULL
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FROM User_Cons_Columns
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WHERE Constraint_Name IN
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(SELECT Constraint_Name FROM USER_Constraints
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WHERE R_Constraint_Name IN
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(SELECT Constraint_Name FROM USER_Cons_Columns
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WHERE Constraint_Name NOT LIKE 'SYS%' AND Column_Name = p_KeyName));
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--
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INSERT INTO Temp_Constraints
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SELECT Constraint_Name, Table_Name, Column_Name, NULL
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FROM User_Cons_Columns uc
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WHERE Column_Name = p_KeyName
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AND Constraint_Name NOT LIKE 'SYS%'
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AND NOT EXISTS
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(SELECT * FROM Temp_Constraints t
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WHERE t.Constraint_Name=uc.Constraint_Name);
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--
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UPDATE Temp_Constraints t
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SET Constraint_Type = (SELECT Constraint_Type FROM User_Constraints c
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WHERE c.Constraint_Name=t.Constraint_Name);
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--
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-- Disable Constraints FK first
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FOR c IN CUR_ConstraintsRP LOOP
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v_Cmd := 'ALTER TABLE ' || c.Table_Name || ' DISABLE ';
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IF (c.Constraint_Type = 'R') THEN
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v_Cmd := v_Cmd || 'CONSTRAINT ' || c.Constraint_Name;
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ELSE
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v_Cmd := v_Cmd || 'PRIMARY KEY';
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END IF;
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DBMS_OUTPUT.PUT_LINE (v_Cmd || ';');
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IF (p_execute) THEN
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EXECUTE IMMEDIATE (v_Cmd);
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END IF;
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END LOOP;
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-- Update IDs - FK first
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FOR c IN CUR_ConstraintsRP LOOP
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v_Cmd := 'UPDATE ' || c.Table_Name
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|| ' SET ' || c.Column_Name || '=' || p_SetInfo
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|| ' WHERE ' || c.Column_Name || p_WhereInfo;
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DBMS_OUTPUT.PUT_LINE (v_Cmd || ';');
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IF (p_execute) THEN
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EXECUTE IMMEDIATE (v_Cmd);
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DBMS_OUTPUT.PUT_LINE(SQL%ROWCOUNT);
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END IF;
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END LOOP;
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-- Enable Constraints - PK first
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FOR c IN CUR_ConstraintsPR LOOP
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v_Cmd := 'ALTER TABLE ' || c.Table_Name || ' ENABLE ';
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IF (c.Constraint_Type = 'R') THEN
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v_Cmd := v_Cmd || 'CONSTRAINT ' || c.Constraint_Name;
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ELSE
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v_Cmd := v_Cmd || 'PRIMARY KEY';
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END IF;
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DBMS_OUTPUT.PUT_LINE (v_Cmd || ';');
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IF (p_execute) THEN
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EXECUTE IMMEDIATE (v_Cmd);
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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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DROP TABLE Temp_Constraints
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/
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