Do prepared statements prevent sql injection?

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Explain exception handling in pl/sql?

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while loading data into database how can u skip header and footer records in sql*loader

1 Answers   Oracle,

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What will you get by the cursor attribute sql%rowcount?

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we have a package and we have grants to execute that package inside of that we have table, here we don't have privileges to this table? whether this package will execute or not?

3 Answers   TCS,

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Is sql difficult?

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What are tables in sql?

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How many types of cursors are available in pl/sql?

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Which is faster view or stored procedure?

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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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Do we need to rebuild index after truncate?

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How do I filter in sql profiler?

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