delete from two tables

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Delete data from two tables how to delete

Delete data from two tables how to delete SELECT * from ' liao_addonarticle ', liao_archives where Liao_addonarticle.aid=liao_archives.id and Liao_ Addonarticle.body= ' There's data out there. I didn't write the following two statements. How to

MySQL simple operation for tables and tables-insert data-delete primary key-delete table-Modify table data-delete table data

--1. Working with databasesUse Ren;--2. Create a student tableCREATE TABLE Student(Sid INT UNSIGNED PRIMARY KEY auto_increment,--UNSIGNED (unsigned) auto_increment (self-increment)Sname VARCHAR (10),--only 10 characters can be savedSaddress VARCHAR (

Ms SQL Server 2000 administrator manual series-18. creation and use of View tables

18. Create and use a view tableView tableView table conceptsCreate a viewModify and delete a tableEnhanced viewing table functionality in SQL Server 2000SummaryIn Chapter 17th, we learned about indexes. indexes are a secondary database structure

Urgent! How to compare the content of two tables in the database, delete the same data, and retain different data

Urgent !! How to compare the content of two tables in the database, delete the same data, and keep different data urgently !!! I would like to explain how to compare the data in two tables and query them one by one. If the data is the same, query

Urgent! How to compare the content of two tables in the database, delete the same data, and retain different data

Urgent !! How to compare the content of two tables in the database, delete the same data, and keep different data urgently !!! I would like to explain how to compare the data in two tables and query them one by one. If the data is the same, query

SQL Application and Development: (5) connecting multiple data tables and multiple SQL tables

SQL Application and Development: (5) connecting multiple data tables and multiple SQL tables Different tables in the database store different data. Users often need to use the data in multiple tables to combine and extract the required information.

Php batch delete tables with the specified prefix in the database take prefix _ as an example. batch delete prefix_PHP tutorial

Php deletes tables with the specified prefix in a database in batches. the prefix _ is used as an example to delete tables with the specified prefix in batches. Php batch deletes tables with the specified prefix in the database. taking prefix _ as

Ms SQL Server 2000 administrator manual series-15. Use Transact-SQL and Enterprise Manager to manage data tables

15. Use Transact-SQL and Enterprise Manager to manage data tablesModifying a data table with a T-SQLUse Enterprise Manager to modify data tablesImpact of modifying a data tableDelete A data tableSummaryIn Chapter 10th, you have learned how to create

MSSQL two SQL Server management libraries and tables

As a database developer, you are responsible for creating and managing databases and tables. When creating a table, maintaining the integrity of the data is important to you. To ensure that the data in the table is accurate, consistent, and reliable,

Mysql basics: delete databases, Delete tables, and rename tables

Mysql basics: deleting databases and tables, rename a table ============== delete a DATABASE ================ drop database is used to cancel the table used in the DATABASE and cancel the DATABASE. Be careful when using this statement! To use drop

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