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Database
SQL For Database Construction
Quiz 1
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Q.1
There are three SQL data modification operations: insert, modify and delete.
True
False
Q.2
SQL statements can be embedded in triggers, stored procedures, and program code.
True
False
Q.3
A view that contains a computed column can be easily updated.
True
False
Q.4
Views can be used to show the results of computed columns.
True
False
Q.5
Three types of triggers are: BEFORE, AFTER and EXCEPTION.
True
False
Q.6
A benefit of using a stored procedure is that it can be distributed to client computers.
True
False
Q.7
A trigger is a stored program that is attached to a database.
True
False
Q.8
A updatable view has its own data.
True
False
Q.9
The SQL DELETE statement is used to delete both the table structure and table data.
True
False
Q.10
A stored procedure is a program that performs some common action on database data and is stored in the database.
True
False
Q.11
The SQL MAKE TABLE command is used to construct tables, define columns, define column constraints and create relationships.
True
False
Q.12
Common types of SQL CHECK constraints include range checks and limiting columns values.
True
False
Q.13
If any required (NOT NULL) columns are missing from the view, the view cannot be used for inserting new data.
True
False
Q.14
A SQL view is a virtual table that is constructed from other tables or views.
True
False
Q.15
SQL has a JOIN ON syntax that can be used to create inner joins and outer joins.
True
False
Q.16
Standard SQL-92 views are constructed from SQL SELECT statements that do not contain the GROUP BY clause.
True
False
Q.17
The SQL CHECK constraint is fully defined by the SQL-92 standard, and is consistently implemented by all DBMS vendors.
True
False
Q.18
When a foreign key column is created without a corresponding foreign key constraint, we have created a "casual relationship" between the two tables.
True
False
Q.19
What SQL structure is used to limit column values of a table?
The LIMIT constraint
The CHECK constraint
The VALUE constraint
None of the above is correct.
Q.20
Which is NOT one of the most common types of SQL CHECK constraints?
System date
Range checks
Lists of values
Comparing one column value to another within the same table
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