drop table ## go exec sp_MSForEachTable @precommand=N'create table ##( 表名 sysname, 记录数 int…
SELECT NAME ,type_desc FROM sys.all_sql_modules s INNER JOIN sys.all_objects o ON s.object…
一、基础 1、说明:创建数据库 CREATE DATABASE database-name 2、说明:删除数据库 drop database dbname 3、说明:备份sql s…
SELECT email_address AS EmailAddress, CONVERT(nvarchar, lastcontact, 101) AS Last_Contact …
delete table1 where rowid not in ( select max(rowid) from table1 group by col1 ,col2 )
declare @i int declare @j int declare @str varchar(20) set @i = 123 while @i < 999/3 be…
--查询表的大小 select t.owner, t.segment_name, (sum(t.blocks) * 8) / 1024 || 'M' as S, t.segment…
select * from dba_data_files 查询数据库内所有的数据字典 select * from DICT
SELECT (case when a.colorder=1 then d.name else '' end) 表名, a.colorder 字段序号, a.name 字段名, (…
SELECT p.name FROM osc_favorites f, osc_projects p WHERE f.obj_id = p.id AND f.type = 1 GR…
INSERT INTO USER (USERID, MOBILE) SELECT CHAR(ROW_NUMBER() OVER()) AS USERID, CHAR(1390000…