ERROR [42000] [Microsoft][SQL Server Native Client 10.0][SQL Server]BACKUP Log

Question

0.00/5 (No votes)

See more:

hi I'm using sql server 2008.

VB

con.Open()
           cmd = New OdbcCommand("DBCC SHRINKFILE(Legend_Log, 1)", con)
           cmd.ExecuteNonQuery()
           con.Close()
           con.Open()
           cmd = New OdbcCommand("BACKUP LOG Legend TO DISK=N'F:\full'", con)
           cmd.ExecuteNonQuery()
    i'm Getting below error on this line
       con.Close()
           con.Open()
           cmd = New OdbcCommand("DBCC SHRINKFILE(Legend, 1)", con)
           cmd.ExecuteNonQuery()
           con.Close()

ERROR [42000] [Microsoft][SQL Server Native Client 10.0][SQL Server]BACKUP LOG cannot be performed because there is no current database backup. ERROR [42000] [Microsoft][SQL Server Native Client 10.0][SQL Server]BACKUP LOG is terminating abnormally.

Help me to fix

Posted 30-Apr-14 21:11pm

sencsk

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

phil.o · Answer 1 · 2014-04-30T22:10:00

You have to backup your data in the right order; that is:
- Backup the database
- Backup the log file (if the database is in full recovery mode)
- Shrink the log (only if its size is insane; unnecessary otherwise)

There is no sense in shrinking a log file that has not been emptied yet. No need to close and reopen a connection at each command, too.

[EDIT]
Schematically, that could be something like:

VB

Dim result As Integer
con.Open()
cmd = New OdbcCommand("BACKUP DATABASE Legend TO DISK=N'F:\full'", con)
result = cmd.ExecuteNonQuery()
cmd.CommandText = "BACKUP LOG Legend_log TO DISK=N'F:\full'"
result = cmd.ExecuteNonQuery()
cmd.CommandText = "DBCC SHRINKFILE(Legend_log, 1)"
result = cmd.ExecuteNonQuery()
con.Close()

Here you can find some very basics about SQL Server backups:
Create a Full Database Backup (SQL Server)[^]