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Resolved Sybase database recovery from complete log (no backup)
  1. Advice
  2.  Database
  3.  SQL Anywhere
0 Votes
  1. Luca Arena
  2. PowerBuilder
  3. Wednesday, 6 January 2021 08:11 AM UTC

Hi all.

A customer of mine, yesterday, performed a bad processing with our PB application on a Sybase SQL Anywhere 10 database and unintentionally deleted a lot of data in various tables. He has no backup of the db (not to mention) but the database has the complete log since creation.

I tried to recover the data acting like this:

  1. transform the log into SQL with dbtran;
  2. edit the obtained SQL file (9GB) and remove all yesterday's operations (checkpoint dates can help me);
  3. create a brand new db with dbinit and execute the modified SQL file on it, obtaining the "restored" db.

I was able to carry out the first two steps without problems; at the third, however, the execution stops me because the SQL file contains strange statements such as:

load into table DBA.pbcattbl from '\\\\. \\ pipe \\ 2792-ASANP_table \ ...

Seems it's trying to import data from a "pipe" which obviously does not exist, blocking everything.

Do you know how to overcome this problem? Are there any alternative solutions to recover customer data?

Thank you so much,
Luca

String get truncated in Label Datawindow-compute column Export datawindow to excel with image
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