@declare in sql code example
Example 1: declare value in sql
DECLARE { @LOCAL_VARIABLE[AS] data_type [ = value ] }
Example 2: what does declare do in sql
-- MySQL
DECLARE variable_name datatype(size) [DEFAULT default_value];
-- Declaring a variable without specifying a default value will result it
-- in being a null value.
-- Declare is what allows us to create a variable