INSERT
使用 INSERT 语句在表中插入新行。
语法图
- InsertIntoStmt
- TableOptimizerHints
- PriorityOpt
- IgnoreOptional
- IntoOpt
- TableName
- PartitionNameListOpt
- InsertValues
- OnDuplicateKeyUpdate
InsertIntoStmt ::=
'INSERT' TableOptimizerHints PriorityOpt IgnoreOptional IntoOpt TableName PartitionNameListOpt InsertValues OnDuplicateKeyUpdate
TableOptimizerHints ::=
hintComment?
PriorityOpt ::=
( 'LOW_PRIORITY' | 'HIGH_PRIORITY' | 'DELAYED' )?
IgnoreOptional ::=
'IGNORE'?
IntoOpt ::= 'INTO'?
TableName ::=
Identifier ( '.' Identifier )?
PartitionNameListOpt ::=
( 'PARTITION' '(' Identifier ( ',' Identifier )* ')' )?
InsertValues ::=
'(' ( ColumnNameListOpt ')' ( ValueSym ValuesList | SelectStmt | '(' SelectStmt ')' | UnionStmt ) | SelectStmt ')' )
| ValueSym ValuesList
| SelectStmt
| UnionStmt
| 'SET' ColumnSetValue? ( ',' ColumnSetValue )*
OnDuplicateKeyUpdate ::=
( 'ON' 'DUPLICATE' 'KEY' 'UPDATE' AssignmentList )?
示例
CREATE TABLE t1 (a INT);
Query OK, 0 rows affected (0.11 sec)
CREATE TABLE t2 LIKE t1;
Query OK, 0 rows affected (0.11 sec)
INSERT INTO t1 VALUES (1);
Query OK, 1 row affected (0.02 sec)
INSERT INTO t1 (a) VALUES (1);
Query OK, 1 row affected (0.01 sec)
INSERT INTO t2 SELECT * FROM t1;
Query OK, 2 rows affected (0.01 sec)
Records: 2 Duplicates: 0 Warnings: 0
SELECT * FROM t1;
+------+
| a |
+------+
| 1 |
| 1 |
+------+
2 rows in set (0.00 sec)
SELECT * FROM t2;
+------+
| a |
+------+
| 1 |
| 1 |
+------+
2 rows in set (0.00 sec)
INSERT INTO t2 VALUES (2),(3),(4);
Query OK, 3 rows affected (0.02 sec)
Records: 3 Duplicates: 0 Warnings: 0
SELECT * FROM t2;
+------+
| a |
+------+
| 1 |
| 1 |
| 2 |
| 3 |
| 4 |
+------+
5 rows in set (0.00 sec)
MySQL 兼容性
INSERT 语句与 MySQL 完全兼容。如发现任何兼容性差异，请尝试 TiDB 支持资源。