as
select * from T_UserInfo;
go
exec proUserInfo
--创建带输入参数的存储过程
create proc proUserInfo1
@name varchar(20)
as
select * from T_UserInfo WHERE Name=@name
go
--调用存储过程
exec proUserInfo1 '郭阳'
--创建带2个输入参数的存储过程
create proc proUserInfo2
@name varchar(20),
@age int
as
select * from T_UserInfo where Name=@name or Age=@age
go
exec proUserInfo2 '李哲',18
--带输出参数的存储过程
create proc proUserInfo3
@name varchar(20),
@age int output
as
select @age=age from T_UserInfo WHERE Name=@name
GO
begin
declare @age int
exec proUserInfo3 '李哲',@age output
select @age
end
---------------------分页
select * from (select ROW_NUMBER() over (order by UserId)as
rownum,* from T_UserInfo) t where rownum>3 and rownum<=6
-------------------存储过程分页
create proc profenye
@pagesize int,
@pageindex int
as
select * from (select ROW_NUMBER() over(order by UserId)as
rownum,* from T_UserInfo)t where
rownum>(@pageindex-1)*@pagesize
and
rownum<=@pageindex*@pagesize
go
--调用
exec profenye 3,1
--索引
删除重复数据的方法：
select distinct * into newtable from T_GrdA
--删除原表
delete from T_GrdA WHERE 1=1
--将临时表数据导入到原表中
insert into T_GrdA
SELECT * FROM newtable
//删除临时表
drop table newtable
------------------------------------------------------------
public partial class 存储过程分页 : Form { int pagesize = 4; int pageindex = 1; int recordcount = 0; int totalsize = 0; public 存储过程分页() { InitializeComponent(); } private void btnFirst_Click(object sender,EventArgs e) { pageindex = 1; DataBinds(pageindex); } private void btnPre_Click(object sender,EventArgs e) { if (pageindex > 1) { pageindex--; } DataBinds(pageindex); } private void btnNext_Click(object sender,EventArgs e) { if (pageindex < totalsize) { pageindex++; } DataBinds(pageindex); } private void btnLast_Click(object sender,EventArgs e) { DataBinds(totalsize); } private void 存储过程分页_Load(object sender,EventArgs e) { recordcount= GetCount(); if (recordcount % pagesize != 0) { totalsize = recordcount / pagesize + 1; } else { totalsize = recordcount / pagesize; } DataBinds(pageindex); } private void DataBinds(int pageindex) { sqlConnection conn = new sqlConnection(@"Data Source=YHB-PC\sqlSERVER2008;Initial Catalog=MyFirst;Persist Security Info=True;User ID=sa;Password=yhb@163"); sqlCommand cmd = new sqlCommand(); cmd.Connection = conn; conn.open(); cmd.CommandText = "profenye"; cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@pageindex",pageindex); cmd.Parameters.AddWithValue("@pagesize",pagesize); sqlDataAdapter adapter = new sqlDataAdapter(cmd); DataTable dt = new DataTable(); adapter.Fill(dt); this.dataGridView1.DataSource = dt; conn.Close(); conn.dispose(); } //获取记录数量 private int GetCount() { sqlConnection conn = new sqlConnection(@"Data Source=YHB-PC\sqlSERVER2008;Initial Catalog=MyFirst;Persist Security Info=True;User ID=sa;Password=yhb@163"); sqlCommand cmd = new sqlCommand(); cmd.Connection = conn; conn.open(); cmd.CommandText = "select count(*) from T_UserInfo"; int count=Convert.ToInt32(cmd.ExecuteScalar()); cmd.dispose(); conn.Close(); conn.dispose(); return count; } }
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