What is the difference between stored procedure and query
Browse Articles. Shailendra Chauhan Print 2 min read 15 Sep Both stored procedures and functions are database objects which contain a set of SQL statements to complete a task. In many ways, both are different from each other. Stored Procedures Stored Procedures are pre-compiled objects which are compiled for the first time and its compiled format is saved, which executes compiled code whenever it is called.
For more about a stored procedure, please refer to the article Different types of Stored Procedure. Functions A function is compiled and executed every time whenever it is called. A function must return a value and cannot modify the data received as parameters. For more about functions, please refer to the article Different types of Functions. The code may be simple, but calling the procedure to use the output parameter to be concatenated is a little bit more complex than a function:. As you can see, you need to declare a new variable named message or any other name of your preference.
When you call the stored procedure, you need to specify that it is an outer parameter. An advantage of the stored procedures is that you can have several parameters while in functions, you can return just one variable scalar function or one table table-valued functions. Msg , Level 16, State 2, Line 65 Only functions and some extended stored procedures can be executed from within a function.
As you can see, you cannot call a function from a stored procedure. Can you call a function from a procedure? Figure 5. A function inside a procedure. As you can see, you can invoke functions inside a stored procedure and you cannot invoke a stored procedure inside a function.
Stored procedures in SQL are easier to create and functions have a more rigid structure and support less clauses and functionality.
By the other hand, you can easily use the function results in T-SQL. We show how to concatenate a function with a string. Results can be returned as a result set, or as an OUT parameter cursor. Read how InetSoft was rated 3 for implementation in G2 Crowd's user survey-based index. The following is a list of known restrictions on stored procedures: Only one dataset is allowed in a stored procedure.
In Oracle, only one cursor is allowed and it has to be the last parameter in the stored procedure. In Oracle, only standard SQL types should be used in the parameters user defined types are not allowed.
In MySQL, older drivers do not return procedure meta-data. View a 2-minute demonstration of InetSoft's easy, agile, and robust BI software.
You can take idea from following links: stackoverflow. Add a comment. Active Oldest Votes. From my side store procedure will be good. Deepak Jais Deepak Jais 19 2 2 bronze badges. Scott Bruns Scott Bruns 1, 12 12 silver badges 12 12 bronze badges. I adopt stored procedure approach as its easy to maintain and easy to trouble shoot. Following is from msdn The optimize for ad hoc workloads option is used to improve the efficiency of the plan cache for workloads that contain many single use ad hoc batches.
Community Bot 1 1 1 silver badge. Using a stored procedure is always better. Coder Coder 1. 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.
0コメント