how to use multiple query in stored procedure

Question

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SQL-Server-2005

In below code i used multiple queries in SP. when i passed type 2 from C# code its expecting @noofpersons as a error. which is not necessary in that select query

SQL

CREATE PROCEDURE [dbo].[RoomDetails_Insertquery]
(
@type int,
@roomno bigint,
@noofpersons bigint,
@roomtype nvarchar(150),
@amt bigint
)
AS
BEGIN
	IF @type=1
BEGIN
	INSERT INTO roomdetails VALUES (@roomno,@noofpersons,@roomtype,@amt)
END

ELSE IF @type=2
BEGIN
	SELECT * FROM roomdetails WHERE roomno=@roomno
END
ELSE IF @type=3
BEGIN
UPDATE roomdetails SET noofpersons=@noofpersons,roomtype=@roomtype,@amt=amt WHERE roomno=@roomno
END   
END

Posted 22-Aug-12 18:31pm

Umapathi K

Updated 22-Aug-12 18:57pm

Prasad_Kulkarni

v2

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ssd_coolguy 23-Aug-12 0:54am

can you show us how you called your sp?

Umapathi K 23-Aug-12 0:58am

SqlCommand cmd = new SqlCommand("RoomDetails_Insertquery", gn.cn());
cmd.Parameters.AddWithValue("@type", 2);
cmd.Parameters.AddWithValue("@roomno", textBox1.Text);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.SelectCommand = cmd;

ssd_coolguy 23-Aug-12 1:04am

see the solution 2...

2 solutions

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Santhosh Kumar Jayaraman · Accepted Answer · 2012-08-22T18:51:00

while calling stored proc pass Null

SQL

exec  [dbo].[RoomDetails_Insertquery] @type=2,@roomno=200,@noofpersons=null,@roomtype='something',
@amt=2000

or in the procedure,
while declare @noopersons set it as default

SQL

CREATE PROCEDURE [dbo].[RoomDetails_Insertquery]
(
@type int,
@roomno bigint,
@noofpersons bigint =null,
@roomtype nvarchar(150),
@amt bigint 
)

and you can pass only the other 4 parameters

ssd_coolguy · Accepted Answer · 2012-08-22T19:04:00

try below code:-

As per your sp,you must pass the all parameters to sp..

VB

SqlCommand cmd = new SqlCommand("RoomDetails_Insertquery", gn.cn());
                  cmd.Parameters.AddWithValue("@type", 2);
                  cmd.Parameters.AddWithValue("@roomno", textBox1.Text);
                  cmd.Parameters.AddWithValue("@noofpersons", Null);
                  cmd.Parameters.AddWithValue("@roomtype",  Null);
                  cmd.Parameters.AddWithValue("@amt", Null); 
                  cmd.CommandType = CommandType.StoredProcedure;
                  SqlDataAdapter da = new SqlDataAdapter(cmd);
                  DataTable dt = new DataTable();
                  da.SelectCommand = cmd;

how to use multiple query in stored procedure

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