copy value from one column to another postgres
UPDATE table SET columnB = columnA;copy value from one column to another postgres
UPDATE table SET columnB = columnA;copy from one table to another postgres using matching column
UPDATE Table2 --format schema.table_name
SET
ref_id2 = table1.ref_id1
FROM table1 -- mention schema name
WHERE table1.id = table2.id
AND
table1.a_ref1 = table2.b_ref1;copy column from one table to another without column duplicate postgres
//Postgres Database Query
insert into table1(column1,column2)
select c1,c2
from table2 a
where not exists ( select 0 from table1 b where b.id = a.id )Copyright © 2021 Codeinu
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