Postgres cte multiple inserts To keep it simple, I figured I could use CTE by fetching and inserting in a single query. Solution: It is possible to create the Multiple Common Table Expression's using single WITH clause in SQL. . From documentation seems that it's not possible: A CTE must be followed by a single SELECT, INSERT, UPDATE, or DELETE statement Creating temporary VIEW can be used as a workaround Sep 21, 2018 · How to perform multiple inserts into postgresql database in one query Ask Question Asked 7 years, 1 month ago Modified 3 years, 6 months ago May 31, 2016 · I would like to add data to at least three tables with one query. adr (street, "number", postal_code, city) VALUES ('te Apr 6, 2018 · How to use RETURNING with ON CONFLICT in PostgreSQL? Without the complications from the conditional INSERT in the 2nd table, this would boil down to a common case of SELECT or INSERT: Is SELECT or INSERT in a function prone to race conditions? Aside "id" text DEFAULT gen_random_uuid() I'd strongly advise to use the data type uuid to store UUIDs. Jul 6, 2017 · There are 3 similar questions regarding PostgreSQL, but 0 regarding SqlServer. Using "select * into <> from " clause to parallelize the query part, but is there a way to parallelize the insert part? PostgreSQL version is 11. com Conclusion Using a CTE for multiple inserts in PostgreSQL is a powerful technique that can streamline your database operations and maintain the integrity of your relational data. I thought of something like this: WITH ins AS ( INSERT INTO core. Jul 15, 2025 · PostgreSQL – Common Table Expression (CTE) A CTE (Common Table Expression) is a temporary result set that we can define within the execution scope of a query. Here is the table schema: Jul 17, 2023 · A PostgreSQL CTE (Common Table Expression) is a temporary result set that can be referenced within another SQL query. WITH data AS ( SELECT id FROM table_one WHERE table_one. Hello, I have a query that reads unknown number of rows and for each row should insert a record in separate table. In this process, I need to take the id from an insert into a separate table and use that in an insert to the target table, Dec 28, 2013 · I have a table that I am trying to update multiple values at once. Example with two rows: WITH new_test_1_rows AS ( INSERT INTO test_1 VALUES (DEFAULT), (DEFAULT) See full list on learnsql. Aug 1, 2021 · Create DML Triggers to Handle Multiple Rows of Data - SQL Server Create DML Triggers to Handle Multiple Rows of Data UPDATE, DELETE, and INSERT Statements - ODBC API Reference Using statements with the JDBC driver - JDBC Driver for SQL Server Jul 17, 2020 · Putting rows into multiple tables at once. These statements, which are often referred to as Common Table Expressions or CTE s, can be thought of as defining temporary tables that exist just for one query. It allows users to create named subqueries that can be used as tables within SELECT, INSERT, UPDATE, or DELETE queries. Defined using the WITH clause, a CTE can be referenced multiple times in a SQL statement, improving query performance and readability. Oct 22, 2018 · I can use a CTE in a single query like this with mycte as () insert into table1 (col1) select col1 from mycte where col1 in (select col1 from mycte) But what if I want to use mycte in mul I am writing a job to transform data from an old design into a new design. 5 days ago · WITH provides a way to write auxiliary statements for use in a larger query. You could also put the last insert into "name-city" into a CTE as well, and add a SELECT to get all the inserted ids (and anything else you need from the inserted rows) back. The two different CTE's are created using Single WITH Clause and this is separated by comma to create multiple CTE's. Tagged with sql, database, postgres. 6. enabled = TRUE ) INSERT INTO table_two (id) SELECT id FROM data; I was wondering however, if there are any limitations with this Jun 3, 2022 · 2 I have a CTE query returning 750m records, these records need to be inserted into a target table. Would having target table as partitioned help in parallelizing the insert? VALUES (5, (select company_id from GET_COMPANY_ID)) ; The CTE EXISTING_COMPANY will give me the id of an existing "company1" or null. Each auxiliary statement in a WITH clause can be a SELECT, INSERT, UPDATE, DELETE, or MERGE; and the WITH clause itself is attached to a primary statement Aug 18, 2022 · The Postgres-specific ROWS FROM syntax can return rows in lock-step but that, too, is for set-returning functions only. In other words, it is a mechanism to provide more flexibility and readability to complex queries. Aug 5, 2020 · Multiple inserts using one cte postgres Asked 5 years, 2 months ago Modified 5 years, 2 months ago Viewed 4k times Mar 11, 2018 · You need to put the INSERT INTO "name-job" into another CTE. The CTE NEW_COMPANY will give me the id of a newly created company "company1" or null The CTE GET_COMPANY_ID finally will, by using coalesce, try to get an existing id and, if that fails, a new id. See: Unnest multiple arrays in parallel You must take the long way home and generate row numbers in another CTE or subquery. wyqf xlxhig rscalqjp zbrc uph oyynr xzzc bhb jvy sqfr yzzrm dawb elfdzj qilx svru