Multi-line comments start with /* and end with */.
Any text between /* and */ will be ignored.
The following example uses a multi-line comment as an explanation:
/*Select all the columns
of all the records
in the Customers table:*/
SELECT * FROM Customers;
of all the records
in the Customers table:*/
SELECT * FROM Customers;
The following example uses a multi-line comment to ignore many statements:
/*SELECT * FROM Customers;
SELECT * FROM Products;
SELECT * FROM Orders;
SELECT * FROM Categories;*/
SELECT * FROM Suppliers;
SELECT * FROM Products;
SELECT * FROM Orders;
SELECT * FROM Categories;*/
SELECT * FROM Suppliers;
To ignore just a part of a statement, also use the /* */ comment.
The following example uses a comment to ignore part of a line:
SELECT CustomerName, /*City,*/ Country FROM Customers;
The following example uses a comment to ignore part of a statement:
SELECT * FROM Customers WHERE (CustomerName LIKE 'L%'
OR CustomerName LIKE 'R%' /*OR CustomerName LIKE 'S%'
OR CustomerName LIKE 'T%'*/ OR CustomerName LIKE 'W%')
AND Country='USA'
ORDER BY CustomerName;
OR CustomerName LIKE 'R%' /*OR CustomerName LIKE 'S%'
OR CustomerName LIKE 'T%'*/ OR CustomerName LIKE 'W%')
AND Country='USA'
ORDER BY CustomerName;
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