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What is Interoperability Testing?
Interoperability Testing can validate that two products work together and yet neither may be in compliance with the specification. This often happens when sets of two products are tested in a pair-wise manner but the sets are not tested with each other. This situation occurs for various reasons - foremost being the lack of universal test cases and unclear testing procedures. The principal risk in this...
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What is difference between Co-related sub query and nested sub query?
Co-related sub query is one in which inner query is evaluated only once and from that result outer query is evaluated.Nested query is one in which Inner query is evaluated for multiple times for gatting one row of that outer query.ex. Query used with IN() clause is Co-related query. Query used with = operator is Nested query
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What is the difference between testing and debugging?
Big difference is that debugging is conducted by a programmer and the programmer fix the errors during debugging phase. Tester never fixes the errors, but rather find them and return to programmer.
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What is difference between a PROCEDURE & FUNCTION ?
A FUNCTION is always returns a value using the return statement. A PROCEDURE may return one or more values through parameters or may not return at all.
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What is a pseudo column. Give some examples?
It is a column that is not an actual column in the table.eg USER, UID, SYSDATE, ROWNUM, ROWID, NULL, AND LEVEL.
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What is difference between SQL and SQL*PLUS?
SQL*PLUS is a command line tool where as SQL and PL/SQL language interface and reporting tool. Its a command line tool that allows user to type SQL commands to be executed directly against an Oracle database. SQL is a language used to query the relational database(DML,DCL,DDL). SQL*PLUS commands are used to format query result, Set options, Edit SQL commands and PL/SQL.
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What is the purpose of the testing?
Answer posted by Radhika on 2005-05-23 17:50:13: The purpose of testing can be quality assurance, verification and validation, or reliability estimation. Testing can be used as a generic metric as well. Correctness testing and reliability testing are two major areas of testing. Software testing is a trade-off between budget, time and quality.
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