error converting the varchar to datatype int in sql

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1.00/5 (3 votes)

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Quote:
Create table abc (a varchar(100))
Insert into abc values ('20')
After that I altered the Column to int. After changing in table the value is 20 only.
Again altered the Column as char.note char only I put not like as char(10). In table the value is changed to *.how can I get the old value 20.please reply me ASAP.

Posted 18-Sep-14 1:16am

vanarajranjit

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Magic Wonder 18-Sep-14 7:37am

I doubt, didn't you get error message like ...

String or binary data would be truncated.
The statement has been terminated.

while converting to char...

Sharma Richa 18-Sep-14 9:47am

You can't get back this value as char takes only one char.

george4986 19-Sep-14 0:50am

i haven't tried restoring yet.I hope these links will help u.
http://www.mssqltips.com/sqlservertip/3160/recover-deleted-sql-server-data-and-tables-with-the-help-of-transaction-log-and-lsns/

http://www.techrepublic.com/blog/the-enterprise-cloud/restore-your-sql-server-database-using-transaction-logs/

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Magic Wonder · Answer 1 · 2014-09-18T01:44:00

Solution 1

Hi,

Your data got truncated as you did not specified the char length. I think you can not get back those values. I am not sure, may be you can check in transaction logs with DBA.

Check this Transaction Logs[^]

Hope this will help you.

Cheers

Posted 18-Sep-14 1:44am

Magic Wonder

Updated 18-Sep-14 19:37pm

v2

Comments

vanarajranjit 18-Sep-14 12:19pm

Can you tell me how to do???

Magic Wonder 19-Sep-14 1:42am

Check the link provided which will help you to understand, what is Transaction Log? But as i have already specified you can not get back those values. The only ray of hope is DBAs, if possible to them!!!