How we can add a NOT NULL column to a table
Describe how we can add a NOT NULL column to a table?
Expert
First of all, add the column as NULL. Then employ UPDATE to add data to each and every row. Finally employ an ALTER TABLE . . . ALTER COLUMN statement to modify the column constraint to NOT NULL.
hatcher also created the accompanying Level 1 data flow diagram for this process. Unfortunately, this DFD has numerous syntax and semantic errors. Identify the errors. Redraw the DFD to more correctly represent the receive supplier shipments process.
Write down the level of Granularity of a fact table?
Specify various tools in the Business Objects 5.1?
Give a brief introduction of the term data cleaning?
Specify the difference between the ER Modeling and Dimensional Modeling?
Define the term Auto regression? Explain in brief.
Explain what do you mean by the virtual warehouse?
Illustrates the term normalization?
Give a brief introduction of the term active data warehousing?
Give a brief introduction of the term analysis service?
18,76,764
1938622 Asked
3,689
Active Tutors
1441995
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!