WebSQL Server LIKE operator overview The SQL Server LIKE is a logical operator that determines if a character string matches a specified pattern. A pattern may include regular characters and wildcard characters. The LIKE operator is used in the WHERE clause of the SELECT, UPDATE, and DELETE statements to filter rows based on pattern matching. WebThe ALL keyword instructs the AVG () function to calculate the average of all values while the DISTINCT keyword forces the function to operate on distinct values only. By default, the ALL option is used. The following example shows how to use the AVG () function to calculate the average salary of each department:
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