I have a table that has a schema like this: create_table "questions_tags", :id => false, :force => true do |t| t.integer "question_id" t.integer "tag_id" end ...
I have a table item having just one column name:- name ----- toys shirt mobile Shirt speaker Toys .... .... I am trying to delete duplicate rows except one duplicated record with the help of below ...
Background This problem relates to ignoring duplicate inserts using PostgreSQL 9.2 or greater. The reason I ask is because of this code: -- Ignores duplicates. INSERT INTO db_table ...
I have an OLTP database hosted on a SQL Azure instance. I want to pull a copy of the database down from the cloud so I can run some heavy extracts and OLAP-style queries against it without impacting ...
I have a mysql master-slave replication setup. when I checked "show slave status", I got the result as "Slave_Sql_running:No" and Last error as "Duplicate entry 'x' on query." But when I tried to ...