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移除书签title: SHOW BUILTINS summary: TiDB 数据库中 SHOW BUILTINS 的使用概况。
SHOW BUILTINS
SHOW BUILTINS 语句用于列出 TiDB 中所有的内置函数。
语法图
ShowBuiltinsStmt:
示例
SHOW BUILTINS;
+-----------------------------+| Supported_builtin_functions |+-----------------------------+| abs || acos || adddate || addtime || aes_decrypt || aes_encrypt || and || any_value || ascii || asin || atan || atan2 || benchmark || bin || bit_count || bit_length || bitand || bitneg || bitor || bitxor || case || ceil || ceiling || char_func || char_length || character_length || charset || coalesce || coercibility || collation || compress || concat || concat_ws || connection_id || conv || convert || convert_tz || cos || cot || crc32 || curdate || current_date || current_role || current_time || current_timestamp || current_user || curtime || database || date || date_add || date_format || date_sub || datediff || day || dayname || dayofmonth || dayofweek || dayofyear || decode || default_func || degrees || des_decrypt || des_encrypt || div || elt || encode || encrypt || eq || exp || export_set || extract || field || find_in_set || floor || format || format_bytes || format_nano_time || found_rows || from_base64 || from_days || from_unixtime || ge || get_format || get_lock || getparam || getvar || greatest || gt || hex || hour || if || ifnull || in || inet6_aton || inet6_ntoa || inet_aton || inet_ntoa || insert_func || instr || intdiv || interval || is_free_lock || is_ipv4 || is_ipv4_compat || is_ipv4_mapped || is_ipv6 || is_used_lock || isfalse || isnull || istrue || json_array || json_array_append || json_array_insert || json_contains || json_contains_path || json_depth || json_extract || json_insert || json_keys || json_length || json_merge || json_merge_patch || json_merge_preserve || json_object || json_pretty || json_quote || json_remove || json_replace || json_search || json_set || json_storage_size || json_type || json_unquote || json_valid || last_day || last_insert_id || lastval || lcase || le || least || left || leftshift || length || like || ln || load_file || localtime || localtimestamp || locate || log || log10 || log2 || lower || lpad || lt || ltrim || make_set || makedate || maketime || master_pos_wait || md5 || microsecond || mid || minus || minute || mod || month || monthname || mul || name_const || ne || nextval || not || now || nulleq || oct || octet_length || old_password || or || ord || password_func || period_add || period_diff || pi || plus || position || pow || power || quarter || quote || radians || rand || random_bytes || regexp || release_all_locks || release_lock || repeat || replace || reverse || right || rightshift || round || row_count || rpad || rtrim || schema || sec_to_time || second || session_user || setval || setvar || sha || sha1 || sha2 || sign || sin || sleep || space || sqrt || str_to_date || strcmp || subdate || substr || substring || substring_index || subtime || sysdate || system_user || tan || tidb_decode_key || tidb_decode_plan || tidb_is_ddl_owner || tidb_parse_tso || tidb_version || time || time_format || time_to_sec || timediff || timestamp || timestampadd || timestampdiff || to_base64 || to_days || to_seconds || trim || truncate || ucase || unaryminus || uncompress || uncompressed_length || unhex || unix_timestamp || upper || user || utc_date || utc_time || utc_timestamp || uuid || uuid_short || validate_password_strength || version || week || weekday || weekofyear || weight_string || xor || year || yearweek |+-----------------------------+268 rows in set (0.00 sec)
MySQL 兼容性
该语句是 TiDB 对 MySQL 语法的扩展。
