A：不带输出參数的
create procedure getsum @n int =0<--此处为參数--> as declare @sum int<--定义变量--> 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))) |
exec getsum 100
在JAVA中调用：
JAVA能够调用 可是在JAVA程序却不能去显示该存储过程的结果 由于上面的存储过程的參数类型int 传递方式是in(按值)方式
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //创建存储过程的对象 CallableStatement c=conn.prepareCall("{call getsum(?)}"); //给存储过程的參数设置值 c.setInt(1,100); //将第一个參数的值设置成100 //运行存储过程 c.execute(); conn.close(); } } |
B：带输出參数的
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 |
在查询分析器中运行：
declare @myResult int
exec getsum 100,@myResult output
print @myResult
在JAVA中调用：
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //创建存储过程的对象 CallableStatement c=conn.prepareCall("{call getsum(?,?)}"); //给存储过程的第一个參数设置值 c.setInt(1,100); //注冊存储过程的第二个參数 c.registerOutParameter(2,java.sql.Types.INTEGER); //运行存储过程 c.execute(); //得到存储过程的输出參数值 System.out.println (c.getInt(2)); conn.close(); } } |
2:返回varchar
存储过程带游标：
在存储过程中带游标 使用游标不停的遍历orderid
create procedure CursorIntoProcedure
@pname varchar(8000) output
as
--定义游标
declare cur cursor for select orderid from orders
--定义一个变量来接收游标的值
declare @v varchar(5)
--打开游标
open cur
set @pname=''--给@pname初值
--提取游标的值
fetch next from cur into @v
while @@fetch_status=0
begin
set @pname=@pname+';'+@v
fetch next from cur into @v
end
print @pname
--关闭游标
close cur
--销毁游标
deallocate cur
运行存储过程：
exec CursorIntoProcedure ''
JAVA调用：
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 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：删除数据的存储过程
存储过程：
drop table 学生基本信息表 create table 学生基本信息表 ( StuID int primary key, StuName varchar(10), StuAddress varchar(20) ) insert into 学生基本信息表 values(1,'三毛','wuhan') insert into 学生基本信息表 values(2,'三毛','wuhan') create table 学生成绩表 ( StuID int, Chinese int, PyhSics int foreign key(StuID) references 学生基本信息表(StuID) on delete cascade on update cascade ) insert into 学生成绩表 values(1,99,100) insert into 学生成绩表 values(2,99,100) |
创建存储过程：
create procedure delePro
@StuID int
as
delete from 学生基本信息表 where StuID=@StuID
--创建完成
exec delePro 1 --运行存储过程
--创建存储过程
create procedure selePro
as
select * from 学生基本信息表
--创建完成
exec selePro --运行存储过程
在JAVA中调用：
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //创建存储过程的对象 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 ("学号:"+" "+"姓名:"+" "+"地址"); System.out.println (Stu+" "+name+" "+add); } c.close(); } } |
D：改动数据的存储过程
创建存储过程：
create procedure ModPro
@StuID int,
@StuName varchar(10)
as
update 学生基本信息表 set StuName=@StuName where StuID=@StuID
运行存储过程：
exec ModPro 2,'四毛'
JAVA调用存储过程：
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //创建存储过程的对象 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 ("学号:"+" "+"姓名:"+" "+"地址"); System.out.println (Stu+" "+name+" "+add); } c.close(); } } |
E：查询数据的存储过程(模糊查询)
存储过程：
create procedure FindCusts
@cust varchar(10)
as
select customerid from orders where customerid
like '%'+@cust+'%'
运行：
execute FindCusts 'alfki'
在JAVA中调用：
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //创建存储过程的对象 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：添加数据的存储过程
存储过程：
create procedure InsertPro
@StuID int,
@StuName varchar(10),
@StuAddress varchar(20)
as
insert into 学生基本信息表 values(@StuID,@StuName,@StuAddress)
调用存储过程：
exec InsertPro 5,'555','555'
在JAVA中运行：
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); //创建存储过程的对象 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中创建存储过程 而且在JAVA中直接调用
import java.sql.*; public class ProcedureTest { public static void main(String args[]) throws Exception { //载入驱动 DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); //获得连接 Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa",""); Statement stmt=conn.createStatement(); //在JAVA中创建存储过程 stmt.executeUpdate("create procedure OOP as select * from 学生成绩表"); 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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