INSERT INTO target_table (id, column1, column2) SELECT id, column1, column2 FROM another_table ON CONFLICT (id) DO UPDATE SET column1 = EXCLUDED.column1, column2 = EXCLUDED.column2; 在上述示例中,target_table是目标表,another_table是另一个表。通过SELECT...
DO $do$ BEGIN EXECUTE ( SELECT 'UPDATE b SET (' || string_agg(quote_ident(column_name), ',') || ') = (' || string_agg('a.' || quote_ident(column_name), ',') || ') FROM a WHERE b.id = 123 AND a.id = b.id' FROM information_schema.columns WHERE table_name = 'a...
if target is partitioned */boolpartColsUpdated;/* some part key in hierarchy updated */List *resultRelations;/* integer list of RT indexes */intresultRelIndex;/* index of first resultRel in plan's list */introotResultRelIndex;/* index of the partitioned table root ...
PostgreSQL supports updating data in one table based on values in another table using the UPDATE join clause. Example: Copy UPDATE <table_1> SET <column1> = <value1> FROM <table_2> WHERE <join_conditions_table_1_table_2>;In the above syntax, to join another table in the UPDATE statem...
Summary: in this tutorial, you will learn how to use the PostgreSQL UPDATE join syntax to update data in a table based on values in another table. Introduction to the PostgreSQL UPDATE join syntax Sometimes, you need to update data in a table based on values in another table. In this cas...
postgres=# create table test (id int, info text); CREATE TABLE postgres=# insert into test values (1,'a'),(2,'b'); INSERT 0 2 postgres=# begin ; BEGIN postgres=*# select txid_current(), pg_backend_pid(); txid_current | pg_backend_pid ...
When the syntax was in the "Table or Query" field I get the "ERROR: syntax error at end of input¶LINE 1: SELECT * FROM ¶ ^¶" because Alteryx can't handle a syntax other than SELECT * FROM for PostGres SQL here Moving the syntax to the "Post SQL Statement" field gave me...
PostgreSQL Alter Table Exercises: Write a SQL statement to add a foreign key constraint named fk_job_id on job_id column of job_history table referencing to the primary key job_id of jobs table.
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The error obtained from postgres is ERROR: table name "uaa_role" specified more than once (SQLSTATE 42712) I have another location where this query works fine, the only difference I see is that at SELECT has been performed on the same table before this update. ...