To obtain the structure of an Oracle table, the command to use is:
DESCRIBE [TableName].
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STRUCTURE [TableName].
DESCRIBE STRUCTURE [TableName].
DESC TABLE [TableName].
Category: Databases MCQs
DCL Provides Commands To Perform Actions Like _____________
DCL Provides Commands To Perform Actions Like _____________
Authorizing Access And Other Control Over Database
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Insert, Update Or Delete Records And Data Values
Change The Structure Of Tables
All options are correct
In an SQL statement, which of the following parts states the conditions for row selection?
In an SQL statement, which of the following parts states the conditions for row selection?
Where
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Group-by
Order by
Having
A type of query that is placed within a WHERE or HAVING clause of another query is called
A type of query that is placed within a WHERE or HAVING clause of another query is called
Sub query
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Master query
Super query
Multi-query
___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.
___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.
Constraint
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Column
Index
Trigger
________clause is an additional filter that is applied to the result.
________clause is an additional filter that is applied to the result.
Having
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Order by
Group-by
Select
Which command is used for removing a table and all its data from the database:
Which command is used for removing a table and all its data from the database:
Drop table command
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Create command
Alter table command
All options are correct
___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.
___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.
Constraint
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Column
Index
Trigger
In an E-R diagram an entity set is represent by a
In an E-R diagram an entity set is represent by a
Rectangle
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Ellipse
Diamond box
Circle
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?
Data Definition Language(DDL)
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Data Manipulation Language(DML)
DML and DDL
All options are correct