What is TRUE about DEFAULT constraint?
The value will first be checked for certain conditions before inserting it into the column when a DEFAULT constraint applies to a column in the table.
In the event of a DEFAULT constraint being applied to a table's column without a user specifying the value to be inserted when that constraint was applied, the default value that was specified when the constraint was applied will be put into that column.
An index can be created on the table using the DEFAULT constraint.
None of the above
Correct Answer :
B. In the event of a DEFAULT constraint being applied to a table's column without a user specifying the value to be inserted when that constraint was applied, the default value that was specified when the constraint was applied will be put into that column.
In the event of a default constraint is applied to a table's column without a user specifying the value to be inserted when that constraint was applied, the default value that was specified when the constraint was applied will be put into that column.
Related Questions
Which of the following are the types of the temp tables?
Local Temp
Global Temp
Both A) and B)
None of the above
What is TRUE about SAVEPOINT?
Following the completion of a transaction, it must be executed to save all the operations performed in the transaction.
A transaction can be rolled back to its last saved state.
A specific part of a transaction can be given a name
None of the above
Select the correct syntax for Multi-line Comments.
//*Line1
Line2*//
/*Line1
Line2/*
Which function returns the largest value of the column?
MIN()
MAX()
LARGE()
AVG()
The SQL Modulus Operator returns the,
Quotient
Percentage
Sum
Reminder
Global Temp Variable is used with which sign?
###
####
#
##
What does the DESCRIBE Statement do?
In this SQL statement, the data or records are inserted into an existing database table. One query statement can insert multiple records simultaneously using this statement.
By executing this SQL statement, all records in the SQL database will be deleted.
Specify the columns of the table in this SQL statement to return distinct values.
The data specified in this table or view is reported in this SQL statement.
When the table is dropped:
Table structure is dropped
Integrity constraints are dropped
Relationship is dropped
All of the above
Select the Aggregate function(s) among the following.
AVG()
FIRST()
LAST()
All of the above
Select the correct statement.
With the DDL commands, any structural changes can be made to the table, including creation, deletion, and alteration.
With the DML commands, any structural changes can be made to the table, including creation, deletion, and alteration.
With the DCL commands, any structural changes can be made to the table, including creation, deletion, and alteration.
With the TCL commands, any structural changes can be made to the table, including creation, deletion, and alteration.
It is possible to use LIKE clauses with
Strings
Numbers
Both A. and B.
None of the above
Full form of DML is
Data Multiplication Language
Data Manipulation Language
Data Modify Language
Data Mapping Language
What does the following statement do?
Finds any values that end with a
Finds any values whose second character is a
Find any values that contains only two characters ending with a
Mysql > Savepoint ini;
In order to build a link between two tables, which key is used?
Primary
Foreign
Composite
Unique
What is SQL CREATE Table used for?
To Update table
To Create table
To Delete table
None of the above
When an expression includes ___ SQL operator(s), the sequence in which they are evaluated is known as the SQL operator's precedence.
0
1
Multiple
NULL
Which of the following is TRUE about The Foundation Rule in the 12 Codd's Rules?
Relational databases are required.
Databases contain a wide variety of information, and each row and column of each table must hold this information.
The primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.
Null values are treated in database records according to this rule.
Which of the following is SQL Server Date and Time Data Type?
timestamp
sql_variant
real
text
Select the correct statement which will return all the rows from the Table and then also deletes the Table_Add table?
SELECT * FROM Table; DROP TABLE Table_Add
SELECT * WHERE Table; DROP TABLE Table_Add
SELECT * FROM Table; DELETE TABLE Table_Add
SELECT * WHERE Table; DELETE TABLE Table_Add
What is TRUE about NOT NULL Constraint?
In columns that are subject to the NOT NULL constraint, duplicate values are not allowed.
When a table's column is declared as NOT NULL, no record in the table can have an empty value for that column.
By applying the NOT NULL constraint, we will always ensure that the column contains a unique value and won't allow nulls.
The value will first be checked for certain conditions before inserting it into the column when a NOT NULL constraint applies to a column in the table.
What does task list consist of in SQL Script?
Import
Show Quotas
Manage Results
All of the above
Select the correct type(s) of SQL Comments.
Inline Comments
Single Line Comments
Multi-line Comments
All of the above
Using the DELETE Query from the CRUD Operator, we can delete
Only one row
All the rows
Only two rows
None of the above
Types of SQL Commands are
DDL
DML
DCL
All of the above
ROUND function consists of ___ parameters?
One
Two
Three
Four
We can use literal in the CONCAT function. What does literal refer to?
Number
Character
Date
All of the above
SQL DELETE can be used to delete,
Rows
Database
View
All of the above
In case of ____ data, recursive CTE is used?
Round
Hierarchal
Linear
None of the above
SET Operators are used to
Compile the results from two queries
Compile the results from three queries
Compile the results from four queries
Compile the results from five queries
In order to delete the database, which keyword is used?
DROP
DELETE
ALTER
None of the above