一.mysql相关
1.查询所有的数据库
SHOW DATABASES;
2.列出当前数据库的所有表
show tables;
3.查询指定数据库中的所有表信息
select * from information_schema.tables where table_schema = \'ProductDB\' order by table_name;
4.查询指定表的字段总数
select count(*) from information_schema.columns where table_schema = \'ProductDB\' and table_name=\'Products_Core\';
二.sqlserver相关
1.查询所有的数据库
SELECT * FROM Master..SysDatabases ORDER BY Name;
2.列出当前数据库的所有表
SELECT * from sysobjects where xtype = \'U\' ORDER BY name;
3.列出指定表的字段总数
select count(*) from syscolumns where id=object_id(\'Products_Core\');