[小问题笔记(八)] 常用SQL(读字段名,改字段名,打印影响行数,添加默认值,查找存储过程等)
读取所有字段,自然排序
declare @fields varchar(max) Select @fields=ISNULL(@fields,'')++name+',' from syscolumns Where ID=OBJECT_ID('contact') order by colorder print @fields
读取所有字段,名称排序
declare @fields varchar(max) Select @fields=ISNULL(@fields,'')++name+',' from syscolumns Where ID=OBJECT_ID('contact') order by name print @fields;
添加字段、更改类型、改名、删字段
alter table CompeteAgentInfo add isFangTuPay int Null,isFangTu int Null alter table contacttrail alter column TrailDescription nvarchar(2000) sp_rename 'Contacttrail.trailisvalid','IsValid','column' ALTER TABLE table_name DROP COLUMN column_name
打印影响行数:
print @@rowcount
更改表名
EXEC sp_rename 'sshop1', 'Shop'
已有字段添加默认值
alter table AccompanyVisit add constraint AccompanyVisit_isvalid DEFAULT 1 for isvalid
查找存储过程(包含XiaoBu)
SELECT ROUTINE_NAME, ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_DEFINITION LIKE '%XiaoBu%' AND ROUTINE_TYPE='PROCEDURE'