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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,303 @@ | ||
| --- | ||
| title: SHOW BUILTINS | ||
| summary: TiDB 数据库中 SHOW BUILTINS 的使用概况。 | ||
| category: reference | ||
| --- | ||
|
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| # SHOW BUILTINS | ||
|
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| `SHOW BUILTINS` 语句用于列出 TiDB 中所有的内置函数。 | ||
|
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| ## 语法图 | ||
|
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| **ShowBuiltinsStmt:** | ||
|
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|  | ||
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| ## 示例 | ||
|
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| {{< copyable "sql" >}} | ||
|
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| ```sql | ||
| SHOW BUILTINS; | ||
| ``` | ||
|
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| ``` | ||
| +-----------------------------+ | ||
| | 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) | ||
| ``` | ||
|
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| ## MySQL 兼容性 | ||
|
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| `SHOW BUILTINS` 是 TiDB 新增语法，MySQL 中无此语法。 |
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