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caiconghui 237271c764 [Bug] Fix fe meta version problem, make drop meta check code easy to read and add doc content for drop meta check (#4205 )

This PR is mainly do three things:
1. Fix fe meta version bug introduced by #4029 , when fix conflict with #4086 
2. Make drop check code easy to read
3. Add doc content for drop meta check

2020-07-30 09:54:20 +08:00

1.4 KiB

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title, language

title	language
DROP DATABASE	zh-CN

DROP DATABASE

description

该语句用于删除数据库（database）
语法：
    DROP DATABASE [IF EXISTS] db_name [FORCE];

说明：
    1) 执行 DROP DATABASE 一段时间内，可以通过 RECOVER 语句恢复被删除的数据库。详见 RECOVER 语句
    2) 如果执行 DROP DATABASE FORCE，则系统不会检查该数据库是否存在未完成的事务，数据库将直接被删除并且不能被恢复，一般不建议执行此操作

example

1. 删除数据库 db_test
    DROP DATABASE db_test;

keyword

DROP,DATABASE

1.4 KiB Raw Blame History

DROP DATABASE

description

example

keyword

1.4 KiB

Raw Blame History