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Write an sql statement to find what is the percentage of home policies which are from the state of Arizona out of all Home policies by Policy Value.
brief history,definition,current trends and future trends if any of data fragmentation
What is a candidate key? Minimal super keys are known as candidate keys.
What are the advantages of Logical Databases? It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check f
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
Example : Create a sequence named SEQSS that starts at 105, has a step of 1 and can take maximum value as 2000. CREATE SEQUENCE SEQSS START WITH 105 INCREMENT BY 1 MAX VA
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict
Convert the following ER - diagram (Entity Relationship Diagram) into a relational database (the primary keys are underlined): Ans: The relational database schema f
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