T-SQL – LIKE Clause The MS SQL Server 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 (%) The underscore (_) The percent sign represents zero, one, or multiple characters. The underscore represents a single […]
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T-SQL – Quick Guide T-SQL – Overview In 1970”s the product called ”SEQUEL”, structured English query language, developed by IBM and later SEQUEL was renamed to ”SQL” which stands for Structured Query Language. In 1986, SQL was approved by ANSI (American national Standards Institute) and in 1987, it was approved by ISO (International Standards Organization). […]
T-SQL – GROUP BY Clause The SQL Server GROUP BY clause is used in collaboration with the SELECT statement to arrange identical data into groups. The GROUP BY clause follows the WHERE clause in a SELECT statement and precedes the ORDER BY clause. Syntax Following is the basic syntax of GROUP BY clause. The GROUP […]