Create procedure parameter not null

Unsliced Unsliced Hoping someone will update this answer to accept an optional parameter name for the error message, accept all common types bigint, varchar, I don't have time to update this right now but it should be noted that as of SQL raiserror is not supported in stored procedures, but is replaced by THROW which was introduced in — TheHitchenator.

After all, why catch at runtime when you can at compile time? Luke Girvin Patrick Fromberg Patrick Fromberg 1, 10 10 silver badges 36 36 bronze badges. Not available on , just confirmed. SajjanSarkar, your comment is a bit short. BigBother BigBother 2 2 silver badges 9 9 bronze badges. TheHitchenator yeah, you're right, but I think original answer dates back to and I cannot test it right now.

Change should be trivial anyway. BigBrother yep, I'm aware it predates the change, just figured since I found this post others are likely to so worth having the info at the very least in a comment. TheHitchenator I completely agree — BigBother. TheHitchenator Can you point me to a document for this? I'm using raiseerror in a stored proc SQL server version There's a reason stored procedures aren't written as C functions. How hard would it be for SQL Server to check the parameter for null in the exact same way it does for table columns?

Think of it as 'nullable' versus 'non-nullable'. One is a type that contains all the 'standard' values, and also includes a special NULL case value. The other contains only the 'standard' values.

The two types are based on the same underlying values, but one supplies a special case. It's part of the column definition for a table. NULL is typeless. Yes, it's part of the DDL for asserting a column in a table. Are we saying that stored procedure parameters are to be considered orthogonal with table columns? Sign up or log in Sign up using Google. Sign up using Facebook.

Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Helping communities build their own LTE networks. Podcast Making Agile work for data science. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Linked Related Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled. Specify a parameter name by using the at sign as the first character.

The parameter name must comply with the rules for identifiers. Parameters are local to the procedure; the same parameter names can be used in other procedures. One or more parameters can be declared; the maximum is 2, The value of each declared parameter must be supplied by the user when the procedure is called unless a default value for the parameter is defined or the value is set to equal another parameter.

If a procedure contains table-valued parameters , and the parameter is missing in the call, an empty table is passed in. Parameters can take the place only of constant expressions; they cannot be used instead of table names, column names, or the names of other database objects.

All of the native SQL Server data types that have an equivalent in managed code can be used as parameters. Specifies the result set supported as an output parameter. This parameter is dynamically constructed by the procedure and its contents may vary. Applies only to cursor parameters. This option is not valid for CLR procedures. A default value for a parameter. If a default value is defined for a parameter, the procedure can be executed without specifying a value for that parameter.

The default value must be a constant or it can be NULL. The constant value can be in the form of a wildcard, making it possible to use the LIKE keyword when passing the parameter into the procedure. Default values are recorded in the sys. Indicates that the parameter is an output parameter. An output parameter can be a cursor placeholder, unless the procedure is a CLR procedure. Indicates that the parameter cannot be updated or modified within the body of the procedure.

Indicates that the Database Engine does not cache a query plan for this procedure, forcing it to be compiled each time it is executed. For more information regarding the reasons for forcing a recompile, see Recompile a Stored Procedure. The output of the obfuscation is not directly visible in any of the catalog views in SQL Server.

Users who have no access to system tables or database files cannot retrieve the obfuscated text. However, the text is available to privileged users who can either access system tables over the DAC port or directly access database files. Also, users who can attach a debugger to the server process can retrieve the decrypted procedure from memory at runtime.

For more information about accessing system metadata, see Metadata Visibility Configuration. For natively compiled stored procedures, starting SQL Server In SQL Server Specifies that the procedure is created for replication. Consequently, it cannot be executed on the Subscriber. One or more Transact-SQL statements comprising the body of the procedure. Specifies the method of a. If the class has a namespace-qualified name that uses a period.

The specified method must be a static method of the class. You can create, modify, and drop database objects that reference common language runtime modules; however, you cannot execute these references in SQL Server until you enable the clr enabled option.

Indicates atomic stored procedure execution. Changes are either committed or all of the changes rolled back by throwing an exception. The SET options in the user session are not used in the scope of natively compiled stored procedures.

These options are fixed at compile time. The blocks cannot be nested. For more information about atomic blocks, see Natively Compiled Stored Procedures.

Indicates that the procedure is natively compiled. For more information, see Natively Compiled Stored Procedures. Ensures that tables that are referenced by a procedure cannot be dropped or altered.

Required for natively compiled stored procedures. Specifies the transaction isolation level for the stored procedure. The options are as follows:. Specifies that statements cannot read data that has been modified but not yet committed by other transactions. If another transaction modifies data that has been read by the current transaction, the current transaction fails. Specifies that data read by any statement in a transaction is the transactionally consistent version of the data that existed at the start of the transaction.

Specifies the first day of the week to a number from 1 through 7. If it is not specified, the setting is inferred from the specified language. Specifies the order of the month, day, and year date parts for interpreting date, smalldatetime, datetime, datetime2, and datetimeoffset character strings. For more information, see Control Transaction Durability. You can wrap that statement in a stored procedure, such as:.

Slightly more complex, is to provide an input parameter to make the procedure more flexible. For example:. Provide a database ID number when you call the procedure. See Examples towards the end of this article for many more examples. Although this is not an exhaustive list of best practices, these suggestions may improve procedure performance.

When a procedure is executed for the first time, it is compiled to determine an optimal access plan to retrieve the data. Subsequent executions of the procedure may reuse the plan already generated if it still remains in the plan cache of the Database Engine.

One or more procedures can execute automatically when SQL Server starts. The procedures must be created by the system administrator in the master database and executed under the sysadmin fixed server role as a background process.

The procedures cannot have any input or output parameters. For more information, see Execute a Stored Procedure. Procedures are nested when one procedure call another or executes managed code by referencing a CLR routine, type, or aggregate. Procedures and managed code references can be nested up to 32 levels. The nesting level increases by one when the called procedure or managed code reference begins execution and decreases by one when the called procedure or managed code reference completes execution.

Methods invoked from within the managed code do not count against the nesting level limit. However, when a CLR stored procedure performs data access operations through the SQL Server managed provider, an additional nesting level is added in the transition from managed code to SQL. Attempting to exceed the maximum nesting level causes the entire calling chain to fail. These original settings are used when the procedure is executed. If the logic of the procedure depends on a particular setting, include a SET statement at the start of the procedure to guarantee the appropriate setting.

When a SET statement is executed from a procedure, the setting remains in effect only until the procedure has finished running. The setting is then restored to the value the procedure had when it was called. This enables individual clients to set the options they want without affecting the logic of the procedure.