関連ワード:  sql function to count number of rows    sql function to count number of rows in a table    sql function used to count number of rows    sql function used to count the number of rows in a table    sql function to count rows    which sql function is used to count the number of rows in a result set    sql function used to count the number of rows in sql query    which sql function is used to count the number of rows returned by a query    19 in sql what function is used to count the number of rows in a table    sql limit number of rows