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INSERT .. ON DUPLICATE KEY UPDATE .. EXCLUDED

适用于 ✅ 开源版   ✅ 专业版   ✅ 企业版

从 MySQL 8 开始,支持别名 INSERT .. VALUES 子句,以便从 ON DUPLICATE KEY UPDATE 子句中引用其列

INSERT INTO AUTHOR (ID, LAST_NAME)
VALUES
  (3, 'Koontz'),
  (4, 'Shakespeare') AS t   -- Declare source data alias
ON DUPLICATE KEY UPDATE
SET last_name = t.last_name -- Reference source data alias

jOOQ 在 DSL API 中没有显式支持此语法,但是可以像在 MySQL 中一样模拟 INSERT .. ON CONFLICT .. EXCLUDED 中特定于 PostgreSQL 的等效项,因此您可以只使用 DSL.excluded() 伪表

// Add a new author called "Koontz" with ID 3.
// If that ID is already present, update the author's name
create.insertInto(AUTHOR, AUTHOR.ID, AUTHOR.LAST_NAME)
      .values(3, "Koontz")
      .values(4, "Shakespeare")
      .onDuplicateKeyUpdate()
      .set(AUTHOR.LAST_NAME, excluded(AUTHOR.LAST_NAME))
      .execute();

方言支持

此示例使用 jOOQ

insertInto(AUTHOR, AUTHOR.ID, AUTHOR.LAST_NAME).values(3, "X").onDuplicateKeyUpdate().set(AUTHOR.LAST_NAME, excluded(AUTHOR.LAST_NAME))

翻译成以下特定方言的表达式

Aurora MySQL, MariaDB, MemSQL

INSERT INTO AUTHOR (ID, LAST_NAME)
VALUES (
  3, 
  'X'
)
ON DUPLICATE KEY UPDATE
  AUTHOR.LAST_NAME = VALUES(LAST_NAME)

Aurora Postgres, CockroachDB, DuckDB, Postgres, YugabyteDB

INSERT INTO AUTHOR (ID, LAST_NAME)
VALUES (
  3, 
  'X'
)
ON CONFLICT (ID)
DO UPDATE
SET
  LAST_NAME = excluded.LAST_NAME

DB2

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
  FROM SYSIBM.DUAL
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

Derby

MERGE INTO AUTHOR
USING SYSIBM.SYSDUMMY1
ON AUTHOR.ID = 3
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = 'X'
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  3, 
  'X'
)

Exasol

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

Firebird

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
  FROM RDB$DATABASE
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

H2

MERGE INTO AUTHOR
USING (
  SELECT
    3 ID,
    'X' LAST_NAME
) t
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

Hana

MERGE INTO AUTHOR
USING (
  (
    SELECT
      3 ID,
      'X' LAST_NAME
    FROM SYS.DUMMY
  )
) t
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

HSQLDB

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
  FROM (VALUES (1)) AS dual (dual)
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

MySQL

INSERT INTO AUTHOR (ID, LAST_NAME)
VALUES (
  3, 
  'X'
)
AS t
ON DUPLICATE KEY UPDATE
  AUTHOR.LAST_NAME = t.LAST_NAME

Oracle

MERGE INTO AUTHOR
USING (
  (
    SELECT
      3 ID,
      'X' LAST_NAME
  )
) t
ON (AUTHOR.ID = t.ID)
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

Redshift, Snowflake

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

SQLite

INSERT INTO AUTHOR (ID, LAST_NAME)
VALUES (
  3, 
  'X'
)
ON CONFLICT 
DO UPDATE
SET
  LAST_NAME = excluded.LAST_NAME

SQLServer

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
);

Sybase

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
  FROM SYS.DUMMY
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  AUTHOR.LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

Teradata

MERGE INTO AUTHOR
USING (
  SELECT 3, 'X'
  FROM (
    SELECT 1 AS "dual"
  ) AS "dual"
) t (ID, LAST_NAME)
ON AUTHOR.ID = t.ID
WHEN MATCHED THEN UPDATE SET
  LAST_NAME = t.LAST_NAME
WHEN NOT MATCHED THEN INSERT (ID, LAST_NAME)
VALUES (
  t.ID, 
  t.LAST_NAME
)

ASE, Access, BigQuery, ClickHouse, Databricks, Informix, SQLDataWarehouse, Trino, Vertica

/* UNSUPPORTED */
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