A stored procedure is an executable object stored on the data source. Generally, it is one or more SQL statements that have been created using specific features of used DBMS. SQL only standardizes way how to call them.
Syntax of stored procedure calling
The first and last curly bracket don't have the meaning determined in the chapter Typography, but they are part of the syntax.
|result||The result of procedure if it acts as a function.|
|parameter||Parameter of procedure. Some DBMS supports parameter omitting by using default value and discarding return value, if a parameter is the output one. Parameter can serve as input, output or input/output.|