SQL
- Introduction To SQL
- SQL Syntax
- SQL SELECT Statement
- SQL SELECT DISTINCT Statement
- SQL WHERE Clause
- SQL AND, OR And NOT Operators
- SQL ORDER BY Keyword
- SQL INSERT INTO Statement
- SQL NULL Values
- SQL UPDATE Statement
- SQL DELETE Statement
- SQL TOP, LIMIT, FETCH FIRST Or ROWNUM Clause
- SQL MIN() And MAX() Functions
- SQL COUNT(), AVG() And SUM() Functions
- SQL LIKE Operator
- SQL Wildcards
- SQL IN Operator
- SQL BETWEEN Operator
- SQL Aliases
- SQL Joins
- SQL INNER JOIN Keyword
- SQL LEFT JOIN Keyword
- SQL RIGHT JOIN Keyword
- SQL FULL OUTER JOIN Keyword
- SQL Self Join
- SQL UNION Operator
- SQL GROUP BY Statement
- SQL HAVING Clause
- SQL EXISTS Operator
- SQL ANY And ALL Operators
- SQL SELECT INTO Statement
- SQL INSERT INTO SELECT Statement
- SQL CASE Statement
- SQL NULL Functions
- SQL Stored Procedures For SQL Server
- SQL Comments
- SQL Operators
- SQL CREATE DATABASE Statement
- SQL DROP DATABASE Statement
- SQL BACKUP DATABASE For SQL Server
- SQL CREATE TABLE Statement
- SQL DROP TABLE Statement
- SQL ALTER TABLE Statement
- SQL Constraints
- SQL NOT NULL Constraint
- SQL UNIQUE Constraint
- SQL PRIMARY KEY Constraint
- SQL FOREIGN KEY Constraint
- ALTER TABLE Orders DROP CONSTRAINT FK_PersonOrder;
- SQL DEFAULT Constraint
- SQL CREATE INDEX Statement
- SQL AUTO INCREMENT Field
- SQL Working With Dates
- SQL Views
- SQL Injection
- SQL Hosting
- SQL Data Types For MySQL, SQL Server, And MS Access
SQL BACKUP DATABASE for SQL Server
The SQL BACKUP DATABASE Statement
The BACKUP DATABASE statement is used in SQL Server to create a full back up of an existing SQL database.
Syntax
BACKUP DATABASE databasename
TO DISK = 'filepath';
TO DISK = 'filepath';
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The SQL BACKUP WITH DIFFERENTIAL Statement
A differential back up only backs up the parts of the database that have changed since the last full database backup.
Syntax
BACKUP DATABASE databasename
TO DISK = 'filepath'
WITH DIFFERENTIAL;
TO DISK = 'filepath'
WITH DIFFERENTIAL;
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BACKUP DATABASE Example
The following SQL statement creates a full back up of the existing database "testDB" to the D disk:
Example
BACKUP DATABASE testDB
TO DISK = 'D:\backups\testDB.bak';
TO DISK = 'D:\backups\testDB.bak';
Tip: Always back up the database to a different drive than the actual database. Then, if you get a disk crash, you will not lose your backup file along with the database.
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BACKUP WITH DIFFERENTIAL Example
The following SQL statement creates a differential back up of the database "testDB":
Example
BACKUP DATABASE testDB
TO DISK = 'D:\backups\testDB.bak'
WITH DIFFERENTIAL;
TO DISK = 'D:\backups\testDB.bak'
WITH DIFFERENTIAL;
Tip: A differential back up reduces the back up time (since only the changes are backed up).
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