The language used in application programs to request data from the DBMS is referred to as the
A. | DML |
B. | DDL |
C. | VDL |
D. | SDL |
Option: A Explanation : Click on Discuss to view users comments. sasikala said: (9:11pm on Tuesday 26th December 2017)
we are requesting records from the database
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The language which has recently become the defacto standard for interfacing application programs with relational database system is
A. | Oracle. |
B. | SQL. |
C. | DBase |
D. | 4GL. |
Option: B Explanation : Click on Discuss to view users comments. |
The DBMS language component which can be embedded in a program is
A. | The data definition language (DDL). |
B. | The data manipulation language (DML). |
C. | The database administrator (DBA). |
D. | A query language. |
Option: B Explanation : Click on Discuss to view users comments. |
Count function in SQL returns the number of
A. | Values. |
B. | Distinct values |
C. | Groups. |
D. | Columns. |
Option: A Explanation : Count function in SQL returns the number of values. (Count function counts all the not null values in the specific column. If we want to count only distinct values than the DISTINCT keyword is also to be used) Click on Discuss to view users comments. |
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