Can we use RETURN statement in procedure?
You can use one or more RETURN statements in a stored procedure. The RETURN statement can be used anywhere after the declaration blocks within the SQL-procedure-body. To return multiple output values, parameters can be used instead. Parameter values must be set prior to the RETURN statement being executed.
Can procedure return a value in MySQL?
To return a value from stored procedure, you need to use user defined session specific variable. Add @ symbol before variable name.
How do I return a stored procedure table in MySQL?
You cannot return table from MySQL function. The function can return string, integer, char etc. To return table from MySQL, use stored procedure, not function.
How many RETURN statement are allowed in a function procedure?
So, only one return statement is executed at run time even though the function contains multiple return statements. Any number of ‘return’ statements are allowed in a function definition but only one of them is executed at run time.
How many RETURN statements can a function have?
The body of a function should have only one return statement.
How many types of functions are there in MySQL?
MySQL Functions: String, Numeric, User-Defined, Stored.
Which are valid MySQL functions?
MySQL has many built-in functions. This reference contains string, numeric, date, and some advanced functions in MySQL….MySQL Date Functions.
Function | Description |
---|---|
CURDATE | Returns the current date |
CURRENT_DATE | Returns the current date |
CURRENT_TIME | Returns the current time |
Does MySQL have stored procedures?
MySQL supports stored routines (procedures and functions). A stored routine is a set of SQL statements that can be stored in the server. Once this has been done, clients don’t need to keep reissuing the individual statements but can refer to the stored routine instead.
What is stored routine in MySQL?
A stored routine is a set of SQL statements that can be stored in the server. Once this has been done, clients don’t need to keep reissuing the individual statements but can refer to the stored routine instead. Stored routines require the proc table in the mysql database. This table is created during the MySQL installation procedure.
Are stored procedures supported in MySQL?
Most database systems support recursive stored procedures. But, it is not supported well in MySQL. Stored Procedure increases the performance of the applications. Once stored procedures are created, they are compiled and stored in the database. Stored procedure reduces the traffic between application and database server.
What is stored procedure return value?
A stored procedure can return an integer value called a return code to indicate the execution status of a procedure. So you should use this not to return data, but to return metadata about the execution of the procedure.
What is an example of stored procedure?
A stored procedure is a group of SQL statements that form a logical unit and perform a particular task, and they are used to encapsulate a set of operations or queries to execute on a database server. For example, operations on an employee database (hire, fire, promote, lookup) could be coded as stored procedures executed by application code.