--创建存储过程
create procedure p1() select * from Users
--JOIN用法
select name,place
from Users
inner join Address
on Users.ID=address.userid
-- =============================================
-- Author: 流逝在夏天
-- Create date: 2011年8月30日20:55:27
-- Update Date： 2011年9月2日3:44:51
-- Description: 简单复习存储过程
-- =============================================
USE test
--用户表
CREATE TABLE Users
(
ID INT PRIMARY KEY IDENTITY(1,1),
UserName VARCHAR (20) UNIQUE NOT NULL,
Pwd VARCHAR(20) NOT NULL,
Sex CHAR(2)CHECK (sex = '女' OR sex ='男'), --or bit
Address VARCHAR(150) NOT NULL
)
INSERT INTO Users VALUES (N'关二爷','123456',N'男',N'三国时代')
INSERT INTO Users VALUES (N'刘备','123456',N'男',N'三国时代')
INSERT INTO Users VALUES (N'张飞','123456',N'男',N'三国时代')
INSERT INTO Users VALUES (N'吕布','123456',N'男',N'三国时代')
--产品表
CREATE TABLE Product
(
ID INT PRIMARY KEY IDENTITY(1,1),
ProName NVARCHAR(50),
ProPrice MONEY ,
ProAddress NVARCHAR (50),
ProType INT
)
INSERT INTO Product VALUES (N'诺基亚N9000',4623,N'安徽经销总店',1)
--产品类型表
CREATE TABLE ProType
(
ID INT PRIMARY KEY IDENTITY (1,1),
TypeName NVARCHAR (50),
)
--常见的系统存储过程
EXEC SP_DATABASES --列出所有服务器的数据库
EXEC SP_HELPDB --报告指定数据库或所有数据库的信息
EXEC SP_RENAMEDB LinqDB ,ReviewSql -- 改数据库名称
EXEC SP_TABLES --查看可查询对象的列表
EXEC SP_COLUMNS Users --查询表列的信息
EXEC SP_HELP Users ---查询表的所有信息
EXEC SP_HELPCONSTRAINT Users --查询表的约束
EXEC SP_HELPINDEX Users --查询表的索引
EXEC SP_STORED_PROCEDURES Users --查询当前环境所有存储过程
EXEC SP_HELPTEXT '参数' --查询未加密的存储过程
/***********************自定义存储过程*******
注意:括号和引号可以不加,不等于是"<>",执行存储过程是传值勿等于 */
--添加用户信息(输出参数(引用传值))
CREATE PROCEDURE SP_AddTableUserProc
(
@UserName VARCHAR(20),
@Pwd VARCHAR(20),
@Sex CHAR(2),
@Address VARCHAR(150),
@ResultID INT OUTPUT
)
AS
BEGIN
INSERT INTO Users VALUES (@UserName,@Pwd,@Sex,@Address)
SELECT @ResultID = MAX(ID) FROM Users
--SET @ResultID=@@ROWCOUNT
END
DECLARE @ResultID INT
EXEC SP_AddTableUserProc N'关二爷','123456',N'男',N'三国时代',@ResultID OUTPUT
SELECT @ResultID
--添加产品信息(输入参数)
CREATE PROCEDURE SP_ProductAddProc
(
@ProName NVARCHAR (50),
@Price MONEY ,
@ProAddress NVARCHAR(50),
@ProType INT
)
AS
BEGIN
INSERT INTO dbo.Product VALUES (@ProName,@Price,@ProAddress,@ProType)
END
GO
/*********************储存过程与视图的联合简单使用********************/
--查询产品详细信息
CREATE PROCEDURE SP_GetProInfoProc
(
@TypeID INT
)
AS
BEGIN
SELECT p.ID,p.ProName,p.ProPrice,p.ProAddress,p.ProType,pt.TypeName FROM Product p
INNER JOIN ProType pt ON p.ProType=pt.ID WHERE P.ID =@TypeID
END
--产品信息视图
CREATE VIEW View_GetProInfo
AS
SELECT p.ID,p.ProName,p.ProPrice,p.ProAddress,p.ProType,pt.TypeName FROM Product p
INNER JOIN ProType pt ON p.ProType=pt.ID
--简单的存储过程与视图
CREATE PROCEDURE SP_GetProInfoProcByView
(
@TypeID INT,
@RowCount INT OUTPUT
)
AS
BEGIN
SELECT *FROM View_GetProInfo WHERE ProType =@TypeID
SET @RowCount=@@ROWCOUNT
END
DECLARE @RowCount INT
EXEC SP_GetProInfoProcByView 1 , @RowCount OUTPUT
SELECT @RowCount
/*******************************储存过程与函数的联合使用***********************/
--基本系统函数
SELECT MAX (ID) FROM Users u
SELECT GETDATE(),GETUTCDATE()
SELECT DATEDIFF(YYYY,'1986-5-6',GETDATE())
SELECT DATENAME (MM,GETDATE())-- 获取字符串月份
SELECT DATEPART (MM,GETDATE ())
--自定义函数
--表值函数(注意dbo,RETURN 括号,无Begin end块)
CREATE FUNCTION Fun_GetProductInfoByProType
(
@TypeID INT
)
RETURNS TABLE
AS
RETURN
(
SELECT p.ID,p.ProName,p.ProPrice,p.ProAddress,p.ProType FROM Product p WHERE ProType =@TypeID
)
--调用
SELECT *FROM dbo .Fun_GetProductInfoByProType(1)
--标量函数(注意返回关键字)(注:可否用到动态加载QQ好友上,Group表与FriendRelation)
CREATE FUNCTION Fun_GetProductNameByID
(
@TypeID INT
)
RETURNS NVARCHAR(50)
AS
BEGIN
DECLARE @TypeName NVARCHAR (50)
SELECT @TypeName= Typename FROM ProType WHERE ID =@TypeID
RETURN @TypeName
END
--调用
SELECT p.proName,p.ProPrice,p.ProAddress,p.ProType ,dbo.Fun_GetProductNameByID(ProType) AS TypeName FROM Product p
--存储过程与函数的使用
CREATE PROCEDURE SP_GetProductInfo
AS
BEGIN
--查询产品详细信息(注意思想)
SELECT p.proName,p.ProPrice,p.ProAddress,p.ProType ,dbo.Fun_GetProductNameByID(ProType) AS TypeName FROM Product p
END
--调用存储过程
EXEC SP_GetProductInfo
/*****************************构造通用存储过程使用*****************************/
--通用删除功能
ALTER PROCEDURE SP_DelProductByCondition
(
@TableName NVARCHAR(50),
@Condition NVARCHAR(50)
)
AS
BEGIN
DECLARE @SqlText NVARCHAR(50)
SET @SqlText ='DELETE FROM ' + @TableName +' WHERE '+ @Condition --(注意空格)
PRINT @SqlText
EXEC (@SqlText) --括号别忘了
END
EXEC dbo.SP_DelProductByCondition 'Product','ID =6'
--通用修改功能
ALTER PROCEDURE SP_UpdateTableByCondition
(
@TableName NVARCHAR(100),
@Condition NVARCHAR(100),
@Colunms NVARCHAR(100)
)
AS
BEGIN
DECLARE @SqlText NVARCHAR(100)
SET @SqlText = 'update ' +@TableName + ' set ' +@Colunms + ' WHERE ' +@Condition --注意空格
PRINT @SqlText
EXEC (@SqlText)
END
EXEC dbo.SP_UpdateTableByCondition 'Product','ID=8','ProName =''不垃圾'' ' --注意双引号
--通用查询功能
CREATE PROCEDURE SP_GetDataByTableName
(
@TableName NVARCHAR (100) --表的名称
)
AS
BEGIN
DECLARE @SqlText NVARCHAR(300)
SET @SqlText ='SELECT *FROM ' + @TableName
PRINT @SqlText
EXEC (@SqlText)
END
EXEC dbo.SP_GetDataByTableName'Product' --查看表信息
EXEC dbo.SP_GetDataByTableName 'dbo.View_GetProInfo' --参看产品信息视图
--
--通用查询改进
ALTER PROCEDURE SP_GetColumnDataByTableName
(
@TableName NVARCHAR (100), --表的名称
@Column NVARCHAR(200), --列名称
@Condition NVARCHAR(100) --条件
)
AS
BEGIN
DECLARE @SqlText NVARCHAR(500)
SET @SqlText ='SELECT ' + @Column +' from ' +@TableName +' where 1=1 ' +@Condition --(whrere 1=1是解决无参构造)
PRINT @SqlText
EXEC (@SqlText)
END
EXEC dbo.SP_GetColumnDataByTableName 'Product','*',''--表信息
EXEC dbo.SP_GetColumnDataByTableName 'Product','ID,Proname ,ProAddress','' --部分列查询
EXEC dbo.SP_GetColumnDataByTableName 'Product','proname ,ProAddress','and ID =1'--部分列于条件查询
/******************************存储过程构造通用分页**************************/
--列:查询Product表中第21条到30条的数据(30-21+1条数据,也就是第三页10条数据),注:Product表中ID为主键自增且不连续
--Top 写法
SELECT TOP (30-21+1) *FROM Product WHERE ID NOT IN (SELECT TOP (21-1) ID FROM Product);
--排名函数写法
SELECT*FROM(SELECT ROW_NUMBER () OVER (ORDER BY ID ASC) AS RowNumber,p.ID ,p.ProName,p.ProPrice,p.ProAddress,p.ProType FROM Product p) AS TempTable
WHERE RowNumber BETWEEN 21 AND 30;
--公用表表达式写法
WITH Temp AS(SELECT ROW_NUMBER() OVER (ORDER BY ID ASC)AS RowNumber ,P.ID,P.ProName,P.ProPrice,P.ProAddress,P.ProType FROM Product p)
SELECT * FROM Temp WHERE RowNumber BETWEEN 21 AND 30;
--存储过程构造TOP 版分页
ALTER PROCEDURE SP_GetDataByPageIndex
(
@TableName NVARCHAR(100), --表名称
@PageSize INT , --页大小
@PageIndex INT , --页索引
@PkColum NVARCHAR(100), --表的ID主键
@Condition NVARCHAR(100) --分页条件
)
AS
BEGIN
DECLARE @SqlText NVARCHAR(500)
SET @SqlText= 'select top ' +CONVERT(NVARCHAR(50),@PageSize) +'* from ' + @TableName+' Where ' +@PkColum + ' not in ( select top '
+CONVERT (NVARCHAR(50),@PageIndex*@PageSize) +' '+@PkColum +' from ' + @TableName+' where 1=1 '+ @Condition +')' +@Condition
PRINT @SqlText
EXEC (@SqlText)
END
EXEC dbo.SP_GetDataByPageIndex'Product',10,0,'ID','' --第1页，每页10条数据
EXEC dbo.SP_GetDataByPageIndex'Product',10,1,'ID','' --第2页
EXEC dbo.SP_GetDataByPageIndex'Product',10,2,'ID' ,''--'select top 10* from Product Where ID not in ( select top 20 ID from Product)与上面相同
--注意where 1=1 的微妙之处, select top 10* from Product Where ID not in ( select top 0 ID from Product where 1=1 and proType =1)and proType =1)
EXEC dbo.SP_GetDataByPageIndex'Product',10,0,'ID','and proType =1' --根据产品类型每页10条分页
--
--存储过程构造排名函数版分页
Alter PROCEDURE SP_GetSampleDataByPageIndex
(
@TableName VARCHAR (20), --分页的表名
@PkColumName VARCHAR(100), --分页的列名
@Sort VARCHAR (4)='ASC', -- 排序方式
@PageIndex INT =1, --显示的页码
@PageSize INT =10 --每一页显示条数
)
AS
BEGIN
DECLARE @PageSql VARCHAR (MAX)
set @PageSql = 'SELECT *FROM (select ROW_NUMBER () over (order by '+@PkColumName+' '+@Sort+') as RowNumber, *from '+@TableName+') TempTable
where RowNumber between '+CAST((@PageIndex-1)*@PageSize+1 AS VARCHAR(20))+' and '+CONVERT(VARCHAR(20),@PageIndex*@PageSize)
PRINT @PageSql
EXEC (@PageSql)
END
--SELECT *FROM (select ROW_NUMBER () over (order by ID ASC) as RowID, *from Product) NewTable where RowID between 1 and 10
EXEC dbo.SP_GetSampleDataByPageIndex 'Product','ID','ASC',1,10 --第一页10条数据
--改进与总结排名函数版分页
--原理图
PageIndex PageSize (PageIndex-1)*PageSize between((PageIndex-1)*PageSize) and (PageIndex*PageSize)
1 10 (1-1)*10 =0 00 10
2 10 (2-1)*10 =10 10 20
3 10 (3-1)*10 =20 20 30
Alter PROCEDURE SP_GetProDataByPageIndex
(
@TableName VARCHAR (20), --分页的表名
@PkColumName VARCHAR(100),--分页的列名
@Sort VARCHAR (4)='ASC', --排序方式
@PageIndex INT =1, --显示的页码
@PageSize INT =10, --每一页显示条数
@Condition NVARCHAR(100) --分页条件
)
AS
BEGIN
DECLARE @PageSql VARCHAR (MAX)
set @PageSql = 'SELECT *FROM (select ROW_NUMBER () over (order by '+@PkColumName+' '+@Sort+') as RowNumber, *from '+@TableName+') TempTable
where RowNumber between '+CAST((@PageIndex-1)*@PageSize+1 AS VARCHAR(20))+' and '+CONVERT(VARCHAR(20),@PageIndex*@PageSize )+' '+@Condition
PRINT @PageSql
EXEC (@PageSql)
END
EXEC dbo .SP_GetProDataByPageIndex 'Product','ID','ASC','1','10','' --无条件分页第一页
EXEC dbo .SP_GetProDataByPageIndex 'Product','ID','ASC','2','10','' --无条件分页第二页
--SELECT *FROM (select ROW_NUMBER () over (order by ID ASC) as RowNumber, *from Product) TempTable where RowNumber between 1 and 10
EXEC dbo .SP_GetProDataByPageIndex 'Product','ID','ASC','1','10','and ProType = 1'--根据产品类型分页
--有一个这样的字符串 1Q,1T,1Q,1m,1m,1m,1Q,1P,2T,1R
--怎样显示结果为3Q+3T+3m+1P+1R
create function dbo.fn_split
(
@inputstr varchar(8000),
@seprator varchar(10)
)
returns @temp table (a varchar(200))
as
begin
declare @i int
set @inputstr = rtrim(ltrim(@inputstr))
set @i = charindex(@seprator, @inputstr)
while @i >= 1
begin
insert @temp values(left(@inputstr, @i - 1))
set @inputstr = substring(@inputstr, @i + 1, len(@inputstr) - @i)
set @i = charindex(@seprator, @inputstr)
end
if @inputstr <> '\'
insert @temp values(@inputstr)
return
end
go
--调用
declare @s varchar(1000)
set @s='1Q,1T,1Q,1m,1m,1m,1Q,1P,2T,1R'
select sum(cast(left(a,1) as int)) c1 , right(a,1) c2 into tmp from dbo.fn_split(@s,',') group by right(a,1)
go
declare @sql varchar(1000)
set @sql = ''
select @sql = @sql + cast(t.c1 as varchar) + cast(t.c2 as varchar) + '+' from (select c1,c2 from tmp) as t
set @sql='select result = ''' + left(@sql , len(@sql) - 1) + ''''
exec(@sql)
drop function dbo.fn_split
drop table tmp
/*
result
--------------
3m+1P+3Q+1R+3T
*/
-- 存储过程 xml 开始
--查询XML节点 value：通过nodes 指定到节点通过Value属性取出值
Declare @Xml xml
set @Xml='12'
SELECT ID.value('.','Nvarchar(500)') as EmployeeID
FROM @Xml.nodes('Employee/ID') Employee(ID)
Declare @Xml xml
set @Xml=''
--查询XML 多节点的值，可以通过子查询实现：
SELECT EmployeeID.value('./@ID','Nvarchar(500)') as ReportColumnID
FROM @Xml.nodes('/Employee/EmployeeID')
X(EmployeeID)
--查询XML 多节点的值，可以通过子查询实现：
Declare @Xml xml
Set @Xml = '
1A1
2B2
3C3
'
SELECT ID.value('.', 'NVARCHAR(100)') As ID,NAME.value('.','NVARCHAR(100)') As NAME
FROM
(
Select
T.C.query('ID') As ID,
T.C.query('NAME') As NAME
From
@Xml.nodes('/X/T') As T(C)
)BT
--OPENXML 查询方式：
DECLARE @idoc int
DECLARE @doc varchar(1000)
SET @doc ='
'
---创建文档内部格式
EXEC sp_xml_preparedocument @idoc OUTPUT, @doc
SELECT *
FROM OPENXML (@idoc, '/ROOT/Customer',1)
WITH (CustomerID varchar(10),
ContactName varchar(20))
--OPENXML 查询方式：
DECLARE @idoc int
DECLARE @doc varchar(1000)
SET @doc ='
'
---创建文档内部格式
EXEC sp_xml_preparedocument @idoc OUTPUT, @doc
SELECT *
FROM OPENXML (@idoc, '/ROOT/Customer/Order/OrderDetail',2)
WITH (OrderID int '../@OrderID',
CustomerID varchar(10) '../@CustomerID',
OrderDate datetime '../@OrderDate',
ProdID int '@ProductID',
Qty int '@Quantity')
--存储过程 xml 结束
