Check out example codes for "sql declare table variable". It will help you in understanding the concepts better.

Code Example 1

DECLARE @TABLE TABLE( COL1 INT, COL2 VARCHAR(30))

Code Example 2

DECLARE @table_variable_name TABLE (
    column_list
);

Example:
DECLARE @product_table TABLE (
    product_name VARCHAR(MAX) NOT NULL,
    brand_id INT NOT NULL,
    list_price DEC(11,2) NOT NULL
);

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