What is WHERE in syntax?
WHERE Clause in MySQL is a keyword used to specify the exact criteria of data or rows that will be affected by the specified SQL statement. The WHERE clause can be used with SQL statements like INSERT, UPDATE, SELECT, and DELETE to filter records and perform various operations on the data.
What does WHERE mean in SQL?
The SQL WHERE clause is used to specify a condition while fetching the data from a single table or by joining with multiple tables. If the given condition is satisfied, then only it returns a specific value from the table. You should use the WHERE clause to filter the records and fetching only the necessary records.
Is like statement in SQL?
The SQL LIKE clause is used to compare a value to similar values using wildcard operators. There are two wildcards used in conjunction with the LIKE operator. The percent sign represents zero, one or multiple characters. The underscore represents a single number or character.
What is the where clause syntax in SQL?
WHERE clause syntax. You use query criteria in the WHERE clause of a SELECT statement. A WHERE clause has the following basic syntax: WHERE field = criterion. For example, suppose that you want the telephone number of a customer, but you only remember that the customer’s last name is Bagel.
What is the syntax for the in condition in SQL?
The syntax for the IN condition in SQL is: This is a value to test. These are the values to test against expression. If any of these values matches expression, then the IN condition will evaluate to true. This is a SELECT statement whose result set will be tested against expression.
When to use where in or where in in SQL?
This list is hardcoded or generated by a subquery. WHERE IN is shorthand for multiple OR conditions. Problem: List all customers from London or Paris. WHERE IN syntax. Problem: List all suppliers from the USA, UK, or Japan. Result: 8 records.
What are the operators in the where clause?
The following operators can be used in the WHERE clause: Operator Description <= Less than or equal <> Not equal. Note: In some versions of SQL BETWEEN Between a certain range LIKE Search for a pattern