C 獲取儲存過程返回值和輸出引數值的方法

//**網路,先留個底

1.獲取return返回值

//

儲存過程
//create procedure mysql
//@a int,
//@b int
//as
//return @a + @b
//go
sqlconnection conn = new sqlconnection(configurationmanager.connectionstrings["
localsqlserver
"].tostring());
conn.open();
sqlcommand mycommand = new sqlcommand("
mysql
", conn);
mycommand.commandtype =commandtype.storedprocedure;
mycommand.parameters.add(
new sqlparameter("@a"
, sqldbtype.int));
mycommand.parameters["@a
"].value = 10
;mycommand.parameters.add(
new sqlparameter("@b"
, sqldbtype.int));
mycommand.parameters["@b
"].value = 20
;mycommand.parameters.add(
new sqlparameter("
@return
", sqldbtype.int));
mycommand.parameters[
"@return
"].direction =parameterdirection.returnvalue;
mycommand.executenonquery();
response.write(mycommand.parameters[
"@return
"].value.tostring());

2.獲取output輸出引數值

//

儲存過程
//create procedure mysql
//@a int,
//@b int,
//@c int output
//as
//set @c = @a + @b
//go
sqlconnection conn = new sqlconnection(configurationmanager.connectionstrings["
localsqlserver
"].tostring());
conn.open();
sqlcommand mycommand = new sqlcommand("
mysql
", conn);
mycommand.commandtype =commandtype.storedprocedure;
mycommand.parameters.add(
new sqlparameter("@a"
, sqldbtype.int));
mycommand.parameters["@a
"].value = 20
;mycommand.parameters.add(
new sqlparameter("@b"
, sqldbtype.int));
mycommand.parameters["@b
"].value = 20
;mycommand.parameters.add(
new sqlparameter("@c"
, sqldbtype.int));
mycommand.parameters["@c
"].direction =parameterdirection.output;
mycommand.executenonquery();
response.write(mycommand.parameters["@c
"].value.tostring());

c#接收儲存過程返回值:

public

static
intuser_add(user us)
catch
(sqlexception ex)
finally
return
iret;
}

c#接收儲存過程輸出引數:

public

static
decimal cart_useramount(int
uid)
catch
(sqlexception ex)
finally
return
iret;
}

c# 中呼叫 mysql 儲存過程並傳遞引數和獲取返回值

callablestatement preparedfunc = myconnect.preparecall("");

preparedfunc.registeroutparameter(
1, types.integer);
preparedfunc.setint(
1, anumber);
preparedfunc.execute();
if (preparedfunc.getint(1) == 1
) system.
out.println(anumber +"
is odd");
else
system.
out.println(anumber +"
is even
");

c#操作mysql資料庫的儲存過程

//

mysql過程
//create procedure jugepasswordcorrect(in username varchar(64), in pwd varchar(32))
//begin
//select count(*) from acctable where account=username and password=pwd;
//end;
using
system;
using
system.collections.generic;
using
system.linq;
using
system.text;
using
mysql.data.mysqlclient;
namespace
testmysql2
conn.close();}}
}

其他寫法:

myco = new

mysqlconnection(strconn);
myco.open();
mycomm = new mysqlcommand("
getrecordcount
", myco);
mycomm.commandtype =commandtype.storedprocedure;
mysqlparameter para = new
mysqlparameter;
para[
0].value = "
uinfo";
para[
1].value =strwhere;
mycomm.parameters.addrange(para);
mysqldatareader mydr=mycomm.executereader();
while
(mydr.read())
else
}pagecountlab.text =pagecount.tostring();
}

/*其他:

引數有@開頭的,也有?開頭的.

mysqldataadapter.fill 返回集

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