Why does this query return 0?

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The count() function always returns a int value type what should you do if you need to count rows from a query which you know will return a value that is too large for an int value type?

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How to create an external table.

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What is dbms and its application?

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how will I find the duplicate rows count from employees tablein oracle.

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What is a join and explain different types of joins?

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Explain the family trees and connection by clause.

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How to use timestamp datatypes

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Explain about relational database management systems?

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A) Which two are benefits of Teradata's support for ANSI Standard SQL? (Choose two.) 1.data is distributed automatically 2.queries get optimized to better plans 3.submit queries from other database systems 4.can interface with BI tools B) Which statement is true when comparing the advantages of third normal form to star schema? 1.Star schema tends to have fewer entities. 2.Star schema requires additional data storage. 3.Third normal form tends to have fewer entities. 4.Third normal form requires additional data storage. C)Which two sets of functions does the Parsing Engine (PE) perform? (Select two.) 1.sorting, formatting, and aggregating of the final answer set 2.flow control of the data to and from the participating tables 3.SQL statement interpretation, syntax validation, and semantic evaluation 4.dispatching the step execution sequence to the AMP via the BYNET D) Which two can be achieved with Teradata Active System Management (TASM)? (Choose two.) 1.disable hardware 2.react to hardware failure 3.influence response times 4.collect metadata E) Which three mechanisms can be used to ensure security within the Teradata Database? (Choose three.) 1.views 2.spool limits 3.roles 4.access rights 5.profiles

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How can I detect whether a given connection is blocked?

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What are data modelling techniques?

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