PGADMIN 4 SCHEDULE EXECUTION CODE

In the declaration section, declare a variable called film_count that stores the number of films selected from the film table.Between these $$, you can place a block that contains the declaration and logic of the function.

Use the dollar-quoted string constant syntax that starts with $$ and ends with $$.

Finally, the language of the function is plpgsql indicated by the language plpgsql.

Third, the get_film_count function returns an integer specified by the returns int clause.

Second, the get_film_count() function accepts two parameters len_from and len_to with the integer datatype.

First, the name of the function is get_film_count that follows the create function keywords.

The function get_film_count has two main sections: header and body.

PGADMIN 4 SCHEDULE EXECUTION CODE

$$ Code language: PostgreSQL SQL dialect and PL/pgSQL ( pgsql )

Where length between len_from and len_to The following statement creates a function that counts the films whose length between the len_from and len_to parameters:Д¬reate function get_film_count(len_from int, len_to int) WeвЂ™ll use the film table from the dvdrental sample database. PostgreSQL Create Function statement examples

Finally, place a block in the dollar-quoted string constant.

Note that PostgreSQL supports many procedural languages, not just plpgsql.

After that, use the language plpgsql to specify the procedural language of the function.

Next, specify the datatype of the returned value after the returns keyword.

A function can have zero or many parameters.

Then, specify the function parameter list surrounded by parentheses after the function name.

If you want to replace the existing function, you can use the or replace keywords.

First, specify the name of the function after the create function keywords.

$$ declare - variable declaration begin - logic end Create function function_name(param_list)

Pgadmin 4 schedule execution