You may experience issues when it comes to special characters. It could be DML (Insert/Update/Delete) where the data is not stored properly (or) display related (SELECT) where the characters do not display correctly as they are stored in the database. You could resolve both. Please continue reading on how to. Straight-forward case: The error "ORA-01704: … Continue reading Oracle: Resolve “ORA-01704: string literal too long” and/or Non-ANSI Language Character Display Issues
Recently, one of the Oracle users complained that the database was unusable and received the error below Check #1: Are we physically out of space? When the host is out of space on the drive/device where the FRA has been set, it can produce this error. We run Oracle on Windows. So, it could be … Continue reading Oracle: Resolve ORA-00257 – Connect AS SYSDBA only until resolved
This is one of those obscure errors that has no answer on the Web. I ran into this error trying to migrate an Oracle table to SQL Server (one of many). The issue seemed to be only with certain rows of this table as it migrated majority of the data without issues. Below is the … Continue reading Oracle & .NET: Resolve – Exception calling “Fill” with “1” argument(s): ‘count’ must be non-negative.
Update 2018/11/19: In 12c, you can now do this operation online. Please check out the “ALTER DATABASE MOVE DATAFILE” command which moves the file without you having to copy. Check it out here. I wanted to do a small post on using the DOS command line tool ADRCI to quickly locate problems from the alert log … Continue reading Oracle On Windows – Simple Timeout To Crisis To Moving Data Files to Another Drive
Simplifying complex problems is difficult but when done, the rewards are definitely worth it. How I single-handedly managed to migrate 55 Billion rows in 4000+ tables: Last year, I created PowerPump a PowerShell based data copy server which continuously migrated 4000+ Oracle tables to SQL Server. It was no simple task given that I had … Continue reading Eating An Elephant – How To Work With Huge Datasets In Oracle And SQL Server