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Why is sql important?
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what is meant by DML?
How does a trigger work?
What does count (*) mean in sql?
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
How many types of literals are available in pl sql?
What is vector point function?
ex: take one schema in that t1,t2,.....tn tables and you don't no the table name also. write a procedure if enter columns name then display the maching columns .otherwise display the unmatch columns.
Why is a trigger used?
what is a unique key ? : Sql dba
What is a Procedure ?
What are types of indexes in sql?
What is the Query to print out the individual total number of duplicate row in sql.
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