Question : I have a table that has 4 e-mail fields. A single contact can have anywhere from 1-4 e-mail […]
Tag: duplication
Checking whether two tables have identical content in PostgreSQL
Question : This has already been asked on Stack Overflow, but only for MySQL. I’m using PostgreSQL. Unfortunately (and surprisingly) […]
Duplicate records returned from table with no duplicates
Question : I have a stored procedure that queries a busy queue table that is used to distribute work in […]
INSERT / UPDATE to merge data, when empty data is an empty string
Question : Consider a table of some family members: mysql> SELECT * FROM some_table; +——–+——–+——–+ | f_name | l_name | […]
Show only duplicate values
Question : How to select rows with duplicate values (non-distinct rows) and summarize with a count of the number of […]
UPSERT with UPDATE on variable column gives error “command cannot affect row a second time”
Question : Hey I’m trying to insert or update(if the constraints are duplicated) based on a query result, these are […]
Sum currencies excluding duplicatied records
Question : I have a CRMOffer table containing customerID and other CRMOffer data. And a Sell table containing customerID and […]
remove duplicate rows in mysql table that does not contain primary key
Question : I have a table item having just one column name:- name —– toys shirt mobile Shirt speaker Toys […]
Getting duplicate primary key for auto increment column
Question : I have a MySQL Innodb table with ‘id’ as auto increment primary key column. My Scripts are doing […]
Oracle 11gR2, duplicating and refreshing cloned database
Question : Assume I’ve cloned PROD database to TEST with RMAN “duplicate target database to CLONE from active database;”. After […]