DELIMITER // CREATE PROCEDURE DeleteMultipleTables() BEGIN DELETE FROM table1 WHERE condition; DELETE FROM table2 WHERE condition; DELETE FROM table3 WHERE condition; END // DELIMITER ; 然后调用这个存储过程: 代码语言:txt
DELIMITER // CREATE PROCEDURE DeleteMultipleTables() BEGIN DELETE FROM table1; DELETE FROM table2; DELETE FROM table3; END // DELIMITER ; CALL DeleteMultipleTables(); 5. 使用Shell脚本 如果你需要在多个数据库上执行删除操作,或者想要自动化这个过程,可以使用Shell脚本来遍历并执行删除操作。例如: bash...
Delete from Multiple TablesPosted by: zaver xaver Date: March 26, 2009 07:34AM Hello, I am quite new to mysql and i would like some help with deleting from multiple tables. As far as i know i can either use a join delete query or delete sequentially from one table at a time. ...
DELIMITER // CREATE PROCEDURE DeleteMultipleTables() BEGIN DELETE FROM table1; DELETE FROM table2; END // DELIMITER ; 调用存储过程 代码语言:txt 复制 CALL DeleteMultipleTables(); 可能遇到的问题及解决方法 权限问题:如果用户没有足够的权限执行存储过程,会报错。解决方法是为用户授予相应的权限。 权限问题...
In the previous tutorial, you learned how to delete data from multiple related tables using a singleDELETEstatement. However, MySQL provides a more effective way calledON DELETE CASCADEreferential action for aforeign keythat allows you to delete data from child tables automatically when you delete ...
you learned how to delete data from multiple related tables by using a singleDELETE statement. However, MySQL provides a more effective way calledON DELETE CASCADEreferential action for a foreign key that allows you to delete data from child tables automatically when you delete the data from the...
22.4.4.4 Delete Tables You can use the delete() method to remove some or all records from a table in a database. The X DevAPI provides additional methods to use with the delete() method to filter and order the records to be deleted. ...
To delete data from multiple tables using a singleDELETEstatement, you use theDELETE JOINstatement which we will cover in thenext tutorial. To delete all rows in a table without the need of knowing how many rows deleted, you should use theTRUNCATE TABLEstatement to get a better performance. ...
As I understand, you ought to be able to delete from multiple tables with one statement of the following format: Delete Table1, Table2 from Table1 inner join Table2 where Table1.Field1=Table2.Field1 and Table1.Field1=Value1; But if Table2 has a foreign key referencing Table1, this ...
MySQL Database Error: Unknown table 'u' in MULTI DELETE please any one point out the error. Subject Views Written By Posted problem in deleting from multiple tables 3128 Radhakant Samal December 01, 2010 05:54AM Re: problem in deleting from multiple tables ...