CODEWITHSUNDEEP
sqlsql-serverselectstored-proceduresparameters
GVillani82
GVillani82

Reputation: 17429

Pass select result as parameter of stored procedure

I have a T-SQL stored procedure with the following parameters

CREATE PROCEDURE [dbo].[SaveData]
-- Add the parameters for the stored procedure here
    @UserID varchar(50),
    @ServiceID varchar(50),
    @param1 varchar(50),
    @param2 varchar(50),
    @endDate datetime
AS BEGIN
    . 
    .
    -- my code --

I want know if it is possible to pass a result of select as parameter:

    exec SaveDate (SELECT player.UserID,player.ServiceID, 'no','no',GETDATE()
           FROM player)

I tried something like this, but it does not work.

Upvotes: 33

Views: 106901

Answers (2)

Vladislav
Vladislav

Reputation: 2982

1.One way is:
a) Declare your variables
b) Assign values to them with a single select statement
c) Execute the procedure passing the local variables
d) Execute the following in a loop using WHILE or CURSOR in order to apply this for all rows in TABLE1

DECLARE @param1 <DATATYPE>, @param2 <DATATYPE>, ...

SELECT TOP 1 @param1 = col1,    @param2 = col2, ...
FROM TABLE1
WHERE <where_clause>

EXEC SaveDate @param1, @param2, ...

2.Other way is to define your own table type, fill it, and pass it to procedure. However this requires changing a little bit your stored procedure (in params list your custom type should be followed by READONLY):

CREATE TYPE [dbo].[TYPENAME] AS TABLE(
    [ID] [int] NOT NULL,
    ...
)
GO

DECLARE @myTypeVar TYPENAME;

INSERT @myTypeVar
SELECT col1, col2, ...
FROM TABLE1

EXEC SaveData @myTypeVar

Upvotes: 21

MarkD
MarkD

Reputation: 5316

The SELECT query you wrote in your example would probably bring back multiple rows (your SELECT does not feature a WHERE clause or a TOP(n)). If your intention is to be able to have your procedure engage a "tabular" set of parameters, from SQL Server 2008, you are able to use table valued parameters.

This involves creating a user defined table table and will almost undoubtedly mean adjusting the logic inside the stored procedure.

Hope this helps :)

See http://msdn.microsoft.com/en-us/library/bb510489(SQL.100).aspx for more information.

Upvotes: 9

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