一、Java如何實(shí)現(xiàn)對(duì)存儲(chǔ)過程的調(diào)用：

A：不帶輸出參數(shù)的

create procedure getsum @n int =0<--此處為參數(shù)--> as declare @sum int<--定義變量--> declare @i int set @sum=0 set @i=0 while @i<=@n begin set @sum=@sum+@i set @i=@i+1 end print 'the sum is '+ltrim(rtrim(str(@sum)))

在SQL中執(zhí)行：

exec getsum 100

在JAVA中調(diào)用：

JAVA可以調(diào)用 但是在JAVA程序卻不能去顯示該存儲(chǔ)過程的結(jié)果 因?yàn)樯厦娴拇鎯?chǔ)過程的參數(shù)類型int 傳遞方式是in(按值)方式

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //創(chuàng)建存儲(chǔ)過程的對(duì)象 CallableStatement c=conn.prepareCall("{call getsum(?)}"); //給存儲(chǔ)過程的參數(shù)設(shè)置值 c.setInt(1,100); //將第一個(gè)參數(shù)的值設(shè)置成100 //執(zhí)行存儲(chǔ)過程 c.execute(); conn.close(); } }

B：帶輸出參數(shù)的

1:返回int

alter procedure getsum @n int =0, @result int output as declare @sum int declare @i int set @sum=0 set @i=0 while @i<=@n begin set @sum=@sum+@i set @i=@i+1 end set @result=@sum

在查詢分析器中執(zhí)行：

declare @myResult int exec getsum 100,@myResult output print @myResult

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在JAVA中調(diào)用：

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //創(chuàng)建存儲(chǔ)過程的對(duì)象 CallableStatement c=conn.prepareCall("{call getsum(?,?)}"); //給存儲(chǔ)過程的第一個(gè)參數(shù)設(shè)置值 c.setInt(1,100); //注冊(cè)存儲(chǔ)過程的第二個(gè)參數(shù) c.registerOutParameter(2,java.sql.Types.INTEGER); //執(zhí)行存儲(chǔ)過程 c.execute(); //得到存儲(chǔ)過程的輸出參數(shù)值 System.out.println (c.getInt(2)); conn.close(); } }

2:返回varchar

存儲(chǔ)過程帶游標(biāo)：

在存儲(chǔ)過程中帶游標(biāo) 使用游標(biāo)不停的遍歷orderid

create procedure CursorIntoProcedure @pname varchar(8000) output as --定義游標(biāo) declare cur cursor for select orderid from orders --定義一個(gè)變量來接收游標(biāo)的值 declare @v varchar(5) --打開游標(biāo) open cur set @pname=''--給@pname初值 --提取游標(biāo)的值 fetch next from cur into @v while @@fetch_status=0 begin set @pname=@pname+';'+@v fetch next from cur into @v end print @pname --關(guān)閉游標(biāo) close cur --銷毀游標(biāo) deallocate cur

執(zhí)行存儲(chǔ)過程：

exec CursorIntoProcedure ''

JAVA調(diào)用：

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); CallableStatement c=conn.prepareCall("{call CursorIntoProcedure(?)}"); c.registerOutParameter(1,java.sql.Types.VARCHAR); c.execute(); System.out.println (c.getString(1)); conn.close(); } }

C：刪除數(shù)據(jù)的存儲(chǔ)過程

存儲(chǔ)過程：

drop table 學(xué)生基本信息表 create table 學(xué)生基本信息表 ( StuID int primary key, StuName varchar(10), StuAddress varchar(20) ) insert into 學(xué)生基本信息表 values(1,'三毛','wuhan') insert into 學(xué)生基本信息表 values(2,'三毛','wuhan') create table 學(xué)生成績(jī)表 ( StuID int, Chinese int, PyhSics int foreign key(StuID) references 學(xué)生基本信息表(StuID) on delete cascade on update cascade ) insert into 學(xué)生成績(jī)表 values(1,99,100) insert into 學(xué)生成績(jī)表 values(2,99,100)

創(chuàng)建存儲(chǔ)過程：

create procedure delePro @StuID int as delete from 學(xué)生基本信息表 where StuID=@StuID --創(chuàng)建完畢 exec delePro 1 --執(zhí)行存儲(chǔ)過程 --創(chuàng)建存儲(chǔ)過程 create procedure selePro as select * from 學(xué)生基本信息表 --創(chuàng)建完畢 exec selePro --執(zhí)行存儲(chǔ)過程

在JAVA中調(diào)用：

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //創(chuàng)建存儲(chǔ)過程的對(duì)象 CallableStatement c=conn.prepareCall("{call delePro(?)}"); c.setInt(1,1); c.execute(); c=conn.prepareCall("{call selePro}"); ResultSet rs=c.executeQuery(); while(rs.next()) { String Stu=rs.getString("StuID"); String name=rs.getString("StuName"); String add=rs.getString("StuAddress"); System.out.println ("學(xué)號(hào):"+" "+"姓名:"+" "+"地址"); System.out.println (Stu+" "+name+" "+add); } c.close(); } }

D：修改數(shù)據(jù)的存儲(chǔ)過程

創(chuàng)建存儲(chǔ)過程：

create procedure ModPro @StuID int, @StuName varchar(10) as update 學(xué)生基本信息表 set StuName=@StuName where StuID=@StuID

執(zhí)行存儲(chǔ)過程：

exec ModPro 2,'四毛'

JAVA調(diào)用存儲(chǔ)過程：

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //創(chuàng)建存儲(chǔ)過程的對(duì)象 CallableStatement c=conn.prepareCall("{call ModPro(?,?)}"); c.setInt(1,2); c.setString(2,"美女"); c.execute(); c=conn.prepareCall("{call selePro}"); ResultSet rs=c.executeQuery(); while(rs.next()) { String Stu=rs.getString("StuID"); String name=rs.getString("StuName"); String add=rs.getString("StuAddress"); System.out.println ("學(xué)號(hào):"+" "+"姓名:"+" "+"地址"); System.out.println (Stu+" "+name+" "+add); } c.close(); } }

E：查詢數(shù)據(jù)的存儲(chǔ)過程(模糊查詢)

存儲(chǔ)過程：

create procedure FindCusts @cust varchar(10) as select customerid from orders where customerid like '%'+@cust+'%'

執(zhí)行：

execute FindCusts 'alfki'

在JAVA中調(diào)用：

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //創(chuàng)建存儲(chǔ)過程的對(duì)象 CallableStatement c=conn.prepareCall("{call FindCusts(?)}"); c.setString(1,"Tom"); ResultSet rs=c.executeQuery(); while(rs.next()) { String cust=rs.getString("customerid"); System.out.println (cust); } c.close(); } }

F：增加數(shù)據(jù)的存儲(chǔ)過程

存儲(chǔ)過程：

create procedure InsertPro @StuID int, @StuName varchar(10), @StuAddress varchar(20) as insert into 學(xué)生基本信息表 values(@StuID,@StuName,@StuAddress)

調(diào)用存儲(chǔ)過程：

exec InsertPro 5,'555','555'

在JAVA中執(zhí)行：

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //創(chuàng)建存儲(chǔ)過程的對(duì)象 CallableStatement c=conn.prepareCall("{call InsertPro(?,?,?)}"); c.setInt(1,6); c.setString(2,"Liu"); c.setString(3,"wuhan"); c.execute(); c=conn.prepareCall("{call selePro}"); ResultSet rs=c.executeQuery(); while(rs.next()) { String stuid=rs.getString("StuID"); String name=rs.getString("StuName"); String address=rs.getString("StuAddress"); System.out.println (stuid+" "+name+" "+address); } c.close(); } }

G：在JAVA中創(chuàng)建存儲(chǔ)過程 并且在JAVA中直接調(diào)用

import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //加載驅(qū)動(dòng) DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //獲得連接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); Statement stmt=conn.createStatement(); //在JAVA中創(chuàng)建存儲(chǔ)過程 stmt.executeUpdate("create procedure OOP as select * from 學(xué)生成績(jī)表"); CallableStatement c=conn.prepareCall("{call OOP}"); ResultSet rs=c.executeQuery(); while(rs.next()) { String chinese=rs.getString("Chinese"); System.out.println (chinese); } conn.close(); } }

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原文鏈接：http://technicalsearch.iteye.com/blog/1433293

轉(zhuǎn)載于:https://www.cnblogs.com/davidwang456/p/4094874.html

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