Is it possible to create the following trigger: before or after update trigger for each row?

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Write a query to find the names of users that begin with "um" in sql?

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Does indexing improve query performance?

1 Answers  

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Can we delete column in sql?

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SELECT flavor, SUM (ice_cream_sales) FROM sales_detail GROUP BY flavor ORDER BY 2 DESC If the "sales_detail" table contains ten records with different values in the flavor column (two "vanilla," three "chocolate," four "strawberry," and one NULL), how many rows are returned by the sample code above? 1. 0 rows 2. 1 row 3. 3 rows 4. 4 rows 5. 10 rows

8 Answers   Sonata,

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What are the uses of sysdate and user keywords?

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What are the types of sql commands?

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mention if it is possible to import data directly from t-sql commands without using sql server integration services? If yes, what are the commands? : Transact sql

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why we go for package? what are the advantages of using instead of seperate procuderes or functions

3 Answers   IBM, TCS,

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How to fix oracle error ora-00942: table or view does not exist

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What are the types of subqueries?

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How many types of keys are there in sql?

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