DvSum LLC offers data quality management (DQM) solutions for companies looking to improve business operations by automating data analytics and analysis for better business intelligence, CRM, compliance and risk management.
You have heard the computer maximum garbage in garbage out. The main reason we use a Database rather then excel or MS word to store our Data, is that the Database prevent garbage from getting into them in the first place. This is implemented by imposing the Data integrity. Every DBMS or RDBMS as a set of tool for apply Data integrity.
DBaaS takes pride in its Database Management and Support Services team that has over 14 years of experience in fulfilling database architecture, testing and implementation needs of the UK\'s most prominent FTSE 100 companies.
As name indicated, MIN and MAX return minimum and maximum values from the table. MIN and MAX are both aggregate function which are used in SQL statement to retrieve smaller and larger value from the columns.
The UNION operator used to display the result from two or more set of tables from database by using sql SELECT statement. It combines the result of different tables and display without any duplicate records from those tables.
Sometime it may happen to create mirror copy of any existing table into database; you can easily create it by using SELECT INTO sql statement. This is heavily used to take back up or existing table within database or for any test purpose you may create it.