Answer / kiran r

Check Constraint used to limit the value range entered in the column

Why is sharding used?

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SELECT emp_num, years, SUM(salary) FROM sales UNION ALL SELECT emp_id, SUM(takehomepay) FROM marketing What error is present in the sample code above? 1. Queries being combined with the UNION ALL statement are not allowed to have SELECT lists with a different number of expressions. 2. You are not allowed to use aggregate functions within two queries joined by a UNION ALL statement. 3. The UNION ALL statement incorrectly combines the "years" result from the first query with the "SUM (takehomepay)" result from the second query. 4. Unless the UNION ALL statement is replaced with a UNION statement, the queries will return duplicates. 5. The "emp_id" column from the second query must be renamed (or aliased) as "emp_num" so that it corresponds to the column name from the first query. Otherwise, the queries will not execute.

3 Answers  

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what are the different functions in sorting an array? : Sql dba

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How to create a table using constraints... IF i change the PARENT KEY value ,then CHILD KEY table will also to change in the another table... plz reply ur answers @ mak2786@gmail.com Arunkumar

3 Answers  

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What is triggering circuit?

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how to retrive only second row from table?

31 Answers   IBM,

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How to call the function and Procedure in trigger?

3 Answers   IBM,

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Is there any problem if we use commit repeatedly after each dml statement in a plsq procedure ? (eg. there are 10 update stmt and using 10 commit stmt after each update stmt)

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What are the different dml commands in sql?

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table name: prod there are three fields in the table that are 1.proddate 2.prodQty 3.model Day wise prodQty is stored in the table prod write a query to display total prodqty in the year 2004 april.

2 Answers   Maruti Suzuki,

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1> how are u debugging in plsql ? 2> how to connect oracle database from unix. is there ne way other than using sqlplus ?

2 Answers  

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What is attribute indicator in pl sql?

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