select 语法
select 语句主要语法:
SELECT select_list [ INTO new_table ] FROM table_source [ WHERE search_condition ] [ GROUP BY group_by_expression ] [ HAVING search_condition ] [ ORDER BY order_expression [ ASC | DESC ] ]
比较全的如下:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | SELECT [ ALL | DISTINCT | DISTINCTROW ] [HIGH_PRIORITY] [STRAIGHT_JOIN] [SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT] [SQL_CACHE | SQL_NO_CACHE] [SQL_CALC_FOUND_ROWS] select_expr, ... [ INTO OUTFILE 'file_name' export_options | INTO DUMPFILE 'file_name' ] FROM table_references [ WHERE where_definition] [ GROUP BY {col_name | expr | position} [ ASC | DESC ], ... [ WITH ROLLUP ]] [ HAVING where_definition] [ ORDER BY {col_name | expr | position} [ ASC | DESC ] , ...] [LIMIT {[offset,] row_count | row_count OFFSET offset}] [ PROCEDURE procedure_name(argument_list)] [ FOR UPDATE | LOCK IN SHARE MODE]] |
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