SQL : in clause in stored procedure:how to pass values

sqlsql serversql-server-2005stored-procedures

I want to write a SQL Server 2005 stored procedure which will select and return the user records from the user table for some userids which are passed to the stored procedure as parameter.

How to do this ?

I can pass the user ids as a string separated by comma. So that I can use the

select * 
from users 
where userid in (userids)

E.g. : I want to select records for id's 5,6,7,8,9

How to write the stored procedure ?

Best Answer

For SQL Server 2005, check out Erland Sommarskog's excellent Arrays and Lists in SQL Server 2005 article which shows some techniques how to deal with lists and arrays in SQL Server 2005 (he also has another article for SQL Server 2000).

If you could upgrade to SQL Server 2008, you can use the new feature called "table valued parameter":

First, create a user-defined table type

CREATE TYPE dbo.MyUserIDs AS TABLE (UserID INT NOT NULL)

Secondly, use that table type in your stored procedure as a parameter:

CREATE PROC proc_GetUsers @UserIDTable MyUserIDs READONLY 
AS
SELECT * FROM dbo.Users
    WHERE userid IN (SELECT UserID FROM @UserIDTable)

See details here.

Marc

Syntax:

ALTER TABLE {TABLENAME} 
ADD {COLUMNNAME} {TYPE} {NULL|NOT NULL} 
CONSTRAINT {CONSTRAINT_NAME} DEFAULT {DEFAULT_VALUE}
WITH VALUES

Example:

ALTER TABLE SomeTable
        ADD SomeCol Bit NULL --Or NOT NULL.
 CONSTRAINT D_SomeTable_SomeCol --When Omitted a Default-Constraint Name is autogenerated.
    DEFAULT (0)--Optional Default-Constraint.
WITH VALUES --Add if Column is Nullable and you want the Default Value for Existing Records.

Notes:

Optional Constraint Name:
If you leave out CONSTRAINT D_SomeTable_SomeCol then SQL Server will autogenerate
a Default-Contraint with a funny Name like: DF__SomeTa__SomeC__4FB7FEF6

Optional With-Values Statement:
The WITH VALUES is only needed when your Column is Nullable
and you want the Default Value used for Existing Records.
If your Column is NOT NULL, then it will automatically use the Default Value
for all Existing Records, whether you specify WITH VALUES or not.

How Inserts work with a Default-Constraint:
If you insert a Record into SomeTable and do not Specify SomeCol's value, then it will Default to 0.
If you insert a Record and Specify SomeCol's value as NULL (and your column allows nulls),
then the Default-Constraint will not be used and NULL will be inserted as the Value.

Notes were based on everyone's great feedback below.
Special Thanks to:
@Yatrix, @WalterStabosz, @YahooSerious, and @StackMan for their Comments.

Best Answer

Related Solutions

Sql-server – T-SQL stored procedure that accepts multiple Id values

Sql – Add a column with a default value to an existing table in SQL Server

Syntax:

Example:

Notes:

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