几个常用的SQLServer语句 无 ------------------------------------------------------------------------GO--查询库中表的行数 打印大于0行的表名和行数DECLARE @TableName VARCHAR(128)Declare PostCur Cursor For SELECT name FROM sys.tables Open PostCu
几个常用的SQLServer语句
------------------------------------------------------------------------
GO
--查询库中表的行数 打印大于0行的表名和行数
DECLARE @TableName VARCHAR(128)
Declare PostCur Cursor For
SELECT name FROM sys.tables
Open PostCur
Fetch next From PostCur Into @TableName
While @@fetch_status=0
Begin
DECLARE @ct INT
SET @ct=0
DECLARE @strSQL NVARCHAR(500)
SET @strSQL='Select @ct=Count(1) From '+@TableName
exec sp_executesql @strSQL,N'@ct int output',@ct OUTPUT
IF(@ct>0)
BEGIN
print '表名 '+@TableName
PRINT '数据条数 '+Convert(varchar(32),@ct)
END
Fetch next From PostCur Into @TableName
End
Close PostCur
Deallocate PostCur
----------------------------------------
--查询数据库总各表数据量
GO
CREATE TABLE #tbles(ID int IDENTITY(1,1),TableName varchar(128)
,IsHandle bit DEFAULT('False')
,TableRowCount int DEFAULT(0))
INSERT INTO #tbles(TableName)
SELECT name FROM sys.tables
DECLARE @TableName varchar(128)
DECLARE @ID int
SET @ID=0
SELECT TOP 1 @ID=ID,@TableName=TableName FROM #tbles WHERE IsHandle='False'
WHILE(@ID!=0)
BEGIN
DECLARE @isexists bit
DECLARE @RowCount int
DECLARE @SqlStr nvarchar(1000)
SET @SqlStr='SELECT @RowCount=Count(1) FROM '+@TableName
exec sp_executesql @SqlStr
,N'@RowCount int output',@RowCount OUTPUT
UPDATE #tbles SET IsHandle='True',TableRowCount=@RowCount WHERE TableName=@TableName
Print @RowCount
PRINT @TableName
SET @ID=0
SET @RowCount=0
SET @SqlStr=''
SELECT TOP 1 @ID=ID,@TableName=TableName FROM #tbles WHERE IsHandle='False'
END
SELECT * FROM #tbles
Drop Table #tbles
------------------------------------------------------------------------
---查询存储过程返回结果
GO
create proc getdata2
as
select 1 as r1,2 as r2
GO
create table #temp(r1 int,r2 int)
insert into #temp exec getdata2
select * From #temp
drop table #temp
------------------------------------------------------------------------
----查询生成拼接字符串
Go
create table #temp1(c1 int)
insert into #temp1(c1)Values(1)
insert into #temp1(c1)Values(2)
insert into #temp1(c1)Values(3)
insert into #temp1(c1)Values(4)
GO
Select c1 From #temp1 for xml path('')
Select c1 as [data()] From #temp1 for xml path('')
Select Convert(varchar(10),c1) +',' From #temp1 for xml path('')
declare @str varchar(max)
select @str=(Select Convert(varchar(10),c1) +',' From #temp1 for xml path(''))
select @str
------------------------------------------------------------------------
--获取随机字符串
GO
CREATE VIEW [dbo].[V_RAND]
AS
SELECT RAND1 = CONVERT(INT,RAND()*26),RAND2 = RAND()*2
GO
Create FUNCTION [dbo].[f_GetRandStr](@LEN INT,@FLAG INT)
RETURNS NVARCHAR(100)
AS
--@LEN 输出字符的长度
--@FLAG 返回值包含字符 1:大写字母 2:小写字母 3:大小写字母混合
BEGIN
DECLARE @SQL NVARCHAR(100),@RAND INT
SELECT @SQL = ''
IF @LEN>100
SET @LEN = 100
WHILE @LEN>0
BEGIN
SELECT @RAND = RAND1 +(CASE @FLAG WHEN 1 THEN 65 WHEN 2 THEN 97
ELSE(CASE WHEN RAND2 > 1 THEN 97 ELSE 65 END) END)
FROM V_RAND
SELECT @SQL=@SQL + CHAR(@RAND),@LEN = @LEN - 1
END
RETURN @SQL
END
GO
Select dbo.f_GetRandStr(30,3)
----------------------------------------
--简单的传参输出
GO
declare @i3 int
exec sp_executesql N'Select @i3=@i1+@i2',N'@i1 int,@i2 int,@i3 int output',1,22,@i3 output
Select @i3
