MySQL Cascading Configuration Files

MySQL Cascading Configuration Files

MySQL creates a default configuration file named my.cnf (or my.ini in Windows), that can be edited to include and fine tune the startup options to meet the needs of your environment. This is often more convenient than entering these values every time you start the...
ORA-01555 Snapshot Too Old

ORA-01555 Snapshot Too Old

ORA-01555 Snapshot Too Old The snapshot too old error is a very common error we get asked about on a regular basis. It’s also a pretty simple error to avoid if you know what to look for and how to configure your queries and the Oracle database. The error is basically...
ORA-00936: missing expression

ORA-00936: missing expression

This error comes up pretty often and can be caused by a lot of different things. Usually, this is a pretty easy one to solve. It’s mostly just a syntax error and you forgot part of your SQL statement. You need a select, a column, from clause, and optionally a...
ORA-01722 Invalid Number

ORA-01722 Invalid Number

ORA-01722 Invalid Number This error occurs when you try to convert a character string into a number, and the string can’t be converted into a valid number. So what is a valid number you ask? A valid number to Oracle would be a digit between 0-9, a negative or...
ORA-00600

ORA-00600

The ORA-600 is an internal Oracle error that can be reported by a very serious error. A lot of times this error can’t be solved by an onsite DBA and needs direct help from Oracle to help troubleshoot the issue. If the trace files from the error don’t prove...