Lab Sql

So I inserted few records in a table manually (without using Stored procedure) and rows were fine u… Read more How To Delete Records From A Column Which Belong To A Different Data Type?

The next statement SQL give me a 'ORA-00984: column not allowed here': ALTER TABLE USUVCB.T… Read more Alter Table, Add Column / Ora-00984: Column Not Allowed Here Plsql

I want to add a column to a table, then add a check constraint to make sure its greater than 0. I c… Read more Add A Column To A Table With Check Constraint Sql

I am upgrading my quartz.net version from 1.0.3 to 2.0.2 There is a migration script for database s… Read more Mysql 5.5 Drop Primary Key

I have the following sql table called datatable, date yesteday today tomorrow reading source … Read more How And Why To Add Primary Keys To My Sql Database Table When I Already Have An Index

I'm trying to add a constraint to a table so that it displays one of the columns as the current… Read more Need To Add Constraint: Date Plus 10 Days

I am facing a problem on how to set a new column to unique using Oracle 11g. I try to use this code… Read more Oracle 11g - Add New Column And Set As Unique