からの [完全な] 列を表示

ステートメントSHOW [FULL] COLUMNS FROM <table_name>は、テーブルまたはビューの列を便利な表形式で記述します。オプションのキーワードFULL現在のユーザーがその列に対して持つ権限を表示し、 commentはテーブル定義からの権限を表示します。

ステートメントSHOW [FULL] FIELDS FROM <table_name> 、 DESC <table_name> 、 DESCRIBE <table_name> 、およびEXPLAIN <table_name> 、このステートメントの別名です。

注記：
DESC TABLE <table_name> 、 DESCRIBE TABLE <table_name> 、およびEXPLAIN TABLE <table_name> 、上記のステートメントと同等ではありません。これらはDESC SELECT * FROM <table_name>の別名です。

あらすじ

表示手順:

ShowStmt

ShowColumnsFilterable:

ShowColumnsFilterable

オプトフル:

OptFull

フィールドまたは列:

FieldsOrColumns

ShowTableAliasOpt:

ShowTableAliasOpt

送信者または受信者:

FromOrIn

テーブル名:

TableName

ShowDatabaseNameOpt:

ShowDatabaseNameOpt

DB名:

DBName

ShowLikeOrWhereOpt:

ShowLikeOrWhereOpt

例

mysql> create view v1 as select 1;
Query OK, 0 rows affected (0.11 sec)

mysql> show columns from v1;
+-------+-----------+------+------+---------+-------+
| Field | Type      | Null | Key  | Default | Extra |
+-------+-----------+------+------+---------+-------+
| 1     | bigint(1) | YES  |      | NULL    |       |
+-------+-----------+------+------+---------+-------+
1 row in set (0.00 sec)

mysql> desc v1;
+-------+-----------+------+------+---------+-------+
| Field | Type      | Null | Key  | Default | Extra |
+-------+-----------+------+------+---------+-------+
| 1     | bigint(1) | YES  |      | NULL    |       |
+-------+-----------+------+------+---------+-------+
1 row in set (0.00 sec)

mysql> describe v1;
+-------+-----------+------+------+---------+-------+
| Field | Type      | Null | Key  | Default | Extra |
+-------+-----------+------+------+---------+-------+
| 1     | bigint(1) | YES  |      | NULL    |       |
+-------+-----------+------+------+---------+-------+
1 row in set (0.00 sec)

mysql> explain v1;
+-------+-----------+------+------+---------+-------+
| Field | Type      | Null | Key  | Default | Extra |
+-------+-----------+------+------+---------+-------+
| 1     | bigint(1) | YES  |      | NULL    |       |
+-------+-----------+------+------+---------+-------+
1 row in set (0.00 sec)

mysql> show fields from v1;
+-------+-----------+------+------+---------+-------+
| Field | Type      | Null | Key  | Default | Extra |
+-------+-----------+------+------+---------+-------+
| 1     | bigint(1) | YES  |      | NULL    |       |
+-------+-----------+------+------+---------+-------+
1 row in set (0.00 sec)

mysql> show full columns from v1;
+-------+-----------+-----------+------+------+---------+-------+---------------------------------+---------+
| Field | Type      | Collation | Null | Key  | Default | Extra | Privileges                      | Comment |
+-------+-----------+-----------+------+------+---------+-------+---------------------------------+---------+
| 1     | bigint(1) | NULL      | YES  |      | NULL    |       | select,insert,update,references |         |
+-------+-----------+-----------+------+------+---------+-------+---------------------------------+---------+
1 row in set (0.00 sec)

mysql> show full columns from mysql.user;
+------------------------+---------------+-------------+------+------+---------+-------+---------------------------------+---------+
| Field                  | Type          | Collation   | Null | Key  | Default | Extra | Privileges                      | Comment |
+------------------------+---------------+-------------+------+------+---------+-------+---------------------------------+---------+
| Host                   | char(255)     | utf8mb4_bin | NO   | PRI  | NULL    |       | select,insert,update,references |         |
| User                   | char(32)      | utf8mb4_bin | NO   | PRI  | NULL    |       | select,insert,update,references |         |
| authentication_string  | text          | utf8mb4_bin | YES  |      | NULL    |       | select,insert,update,references |         |
| plugin                 | char(64)      | utf8mb4_bin | YES  |      | NULL    |       | select,insert,update,references |         |
| Select_priv            | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Insert_priv            | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Update_priv            | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Delete_priv            | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Create_priv            | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Drop_priv              | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Process_priv           | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Grant_priv             | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| References_priv        | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Alter_priv             | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Show_db_priv           | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Super_priv             | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Create_tmp_table_priv  | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Lock_tables_priv       | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Execute_priv           | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Create_view_priv       | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Show_view_priv         | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Create_routine_priv    | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Alter_routine_priv     | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Index_priv             | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Create_user_priv       | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Event_priv             | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Repl_slave_priv        | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Repl_client_priv       | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Trigger_priv           | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Create_role_priv       | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Drop_role_priv         | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Account_locked         | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Shutdown_priv          | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Reload_priv            | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| FILE_priv              | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Config_priv            | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| Create_Tablespace_Priv | enum('N','Y') | utf8mb4_bin | NO   |      | N       |       | select,insert,update,references |         |
| User_attributes        | json          | NULL        | YES  |      | NULL    |       | select,insert,update,references |         |
+------------------------+---------------+-------------+------+------+---------+-------+---------------------------------+---------+
38 rows in set (0.00 sec)

MySQLの互換性

TiDB のSHOW [FULL] COLUMNS FROMステートメントは MySQL と完全な互換性があります。互換性の違いが見つかった場合は、バグを報告 .

こちらも参照

テーブルの作成を表示

からの [完全な] 列を表示

あらすじ

例

MySQLの互換性

こちらも参照

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