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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Explain the EXISTS and UNIQUE functions of SQL. Give an example for each? EXISTS: The EXISTS function takes one parameter that is a SQL statement. If any records exist which
I need to Map an E-R diagram to a relational schema
Critically explained the benefits and limitations of different database technologies with proper examples
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
Ask Write the SQL code that will create the table structure for a table named EMP _1. This table is a subset of the EMPLOYEE table. The basic EMP_1 table structure is summarized in
CREATE YOUR DATABASE TABLES Your database project must have a minimum of four tables. Include the SQL scripts used to create the tables in your documentation. Explain the tables
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
Explain the concepts of relational data model? Relational Data Model - The relational model was first introduced through Prof. E.F. Codd of the IBM Research in the year 1970
What is a Transaction? A transaction is an event which happens on the database. Generally a transaction reads a value from the database or writes a value to the database. If y
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