Though it’s not as common a combination as PHP and MySQL, PHP and Microsoft SQL Server can be a powerful team. You can query SQL Server databases easily and effectively using the PEAR database abstraction layer, just as you would a MySQL database. But once you start trying to use one of the primary benefits of SQL Server over MySQL — namely, stored procedures — a few problems quickly become apparent: Show First, your PHP code is often nearly as messy as if you were dynamically building SQL statements for execution. Take the following stored procedure definition:
and consider the PHP code needed to build the SQL statement that will execute this procedure from some page submission:
Not exactly the most readable or aesthetically pleasing chunk of code, is it? Second, what about when you want to do something slightly more advanced than call a stored procedure that simply queries for a list of results? Say, for instance that you’d like to retrieve return values or use output parameters in your stored procedures? There’s nothing built directly into the PEAR database library that will allow for this. Finally, and most importantly, consider security. The code listed above, which produces the SQL string necessary to call the Happily, there are some features built into PHP that can help minimize the
likelihood of these attacks happening — “magic quotes” and the associated “stripslashes” function, for instance. This PHP functionality can be used to “automagically” escape single quotes in all strings input through Enter: The SqlCommand ClassThe
Class instantiation, normally used to define the stored procedure name.
Configure a parameter that must be passed to the stored procedure. The $sType option shown here is the exact SQL Server name of the variable type. Supported values currently include: bit, int, smallint, tinyint, real, float, money, text, char, varchar, datetime, and smalldatetime.
Execute without obtaining a resultset (such as for insert/update/deletes).
Execute and obtain a resultset (such as for select statements).
Retrieve the return value of the stored procedure.
Retrieve the value of any output parameter defined in the stored procedure. To actually use the As an example, to call the sample stored procedure defined above, you would use the following lines of code:
That seems a little more readable than dynamically building the SQL
string to call this procedure yourself, doesn’t it? And, because you define each parameter to the stored procedure with the actual database field type, the
What about return values and output parameters?Right, I did mention those, didn’t I? Well, the ability to retrieve return values is enabled by default with the Output parameters are almost as easy to retrieve, but do
require an extra line of code when configuring your
In this case, you can modify your configuration of the
That’s all there is to it. You can configure any number of output parameters, and retrieve their values (as well as the return value of the
stored procedure), plus any query results your stored procedures happen to yield, via What’s really going on behind the scenes?If you’ve ever executed a stored procedure yourself directly through the Microsoft Query Analyzer, you’ll know that return values and output parameters are not returned automatically there, either — you have to do a little extra work. For instance, in order to find the return value for a stored procedure, you need to write something along these lines:
The query result for
Every return value or output parameter that you want to track must first be declared appropriately (of the correct data type), then included in your actual stored procedure call. The values themselves can then be returned using a ConclusionStored procedures are a powerful tool that should be utilized extensively when you develop software that interacts with SQL Server. Although you can use them directly in PHP — similar to dynamically constructed query statements — your code may benefit from using a more structured approach. The Don’t forget to download the code from this article here. How can I call stored procedure in PHP?To call a stored procedure from a PHP application, you prepare and execute an SQL CALL statement. The procedure that you call can include input parameters (IN), output parameters (OUT), and input and output parameters (INOUT).
How do you call a stored procedure in SQL server?In Object Explorer, connect to an instance of the SQL Server Database Engine, expand that instance, and then expand Databases. Expand the database that you want, expand Programmability, and then expand Stored Procedures. Right-click the user-defined stored procedure that you want and select Execute Stored Procedure.
Why we use stored procedure in PHP?Stored Procedure Tutorial in PHP:
Stored procedures can help to improve web application performance and reduce database access traffic. In this post I want to explain how to create and call the stored procedures from database server.
Where is stored procedure stored in database?Stored procedure in SQL
Temporary procedures are stored in tempdb, and there are two types of temporary procedures: local and global. Local procedures are only visible to the current user connection, while global procedures are visible to any user after they are created.
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