Which operator is used to search for a specified pattern in a column?
The SQL Like is a logical operator that is used to determine whether a specific character string matches a specified pattern. It is commonly used in a Where clause to search for a specified pattern in a column. This operator can be useful in cases when we need to perform pattern matching instead of equal or not equal.
The SQL LIKE Operator
The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. There are two wildcards often used in conjunction with the LIKE operator:
% - The percent sign represents zero, one, or multiple characters
_ - The underscore represents a single character
The percent sign and the underscore can also be used in combinations!
LIKE Syntax is given as follows:
SELECT column1, column2, column2, ...FROM table_name WHERE columnN LIKE pattern;
SQL LIKE Examples is given as follows:
The following SQL statement selects all admins with an AdminName starting with "c":
Example
SELECT * FROM SlightBook WHERE AdminName LIKE 'c%';
The following SQL statement selects all admins with an AdminName ending with "c":
Example
SELECT * FROM SlightBook WHERE AdminName LIKE '%c';
The NOT NULL constraint enforces a column to not accept null values.
Which operator is used to select values within a range?
What is the most common type of join?
With SQL, how can you return the number of records in the "Persons" table?
With SQL, how can you delete the records where the "FirstName" is "Peter" in the Persons Table?