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[Tips] Determine whether there is a database in the sql, and delete it if it exists

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Posted on 10/10/2014 9:16:41 AM | | |
When we are novices creating a new database, there is no design instruction
You may need to recreate the database several times


If there is already a database in SQL when creating a new database,

Do we need to delete it little by little, it's very troublesome

Therefore, it is best to add a piece of code before creating a database to determine whether there is a change in the sql

Delete the database if it exists, the code is as follows:

  1. --判断数据库是否存在，存在则删除
  2. use master
  3. if exists (select * from sysdatabases where name='xxx' )
  4. drop database xxx
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