What is the advantage of varchar2 over char?
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How many types of normalization? What is the use of it?
How to fetch/retrieve the data from hieranchical database and put it into the relational database? for e.g I want to extract the data from IMS DB2 database which is a hierarchical db and load that data into the relational database which is a SQL server.Are there any tools available for directing extracting data from hierarchical db and loading into the relational database (SQL server)?
What is database collection?
What the various ways to tune a teradata query
can any one tell me how i can start database testing mean what should be initial point and how i can write a query for listing page of any item thanks in advance
What is the Lock Based Protocol used for?
What is the difference between primary and candidate key?
can i use the commands "modify" and Change in DB2 to alter my column datatype and its name in a table?
What is the main difference b/w Teradata and Oracle?
What are the differences between Database Trigger and Integrity constraints ?
What is the role of driver manager?
How can we join three tables in SQL server 2000
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