ORA-01792: maximum number of columns in a table or view is 1000
Cause: An attempt was made to create a table or view with more than 1000 columns, or to add more columns to a table or view which pushes it over the maximum allowable limit of 1000. Note that unused columns in the table are counted toward the 1000 column limit.
Action: If the error is a result of a CREATE command, then reduce the number of columns in the command and resubmit. If the error is a result of an ALTER TABLE command, then there are two options: 1) If the table contained unused columns, remove them by executing ALTER TABLE DROP UNUSED COLUMNS before adding new columns; 2) Reduce the number of columns in the command and resubmit.
Custom Search

More Oracle errors
ORA-60009adding (string) blocks to LOB segment string.string partition string with MAXSIZE (string)
ORA-30185output too large to fit in the buffer
ORA-12582TNS:invalid operation
ORA-25342cannot downgrade because there are apply processes for user buffered messages
ORA-01166file number string is larger than string (string)
ORA-03007obsolete feature
IMP-00056multiple devices specified for tape input
O2I-00116Unable to close the HFILE file
RMAN-10032unhandled exception during execution of job step number: string
DRG-11870Response From WAIS Server Too Large -- Extra Lines Ignored
ORA-02263need to specify the datatype for this column
RMAN-05506error during recursive execution
ORA-03145I/O streaming direction error
ORA-13357extent type does not contain 2 points
ORA-46068Role not specified
ORA-24272initialization value must be either F or T
TNS-02401gbname string too long, allowed number characters
ORA-26688missing key in LCR
ORA-44328unsupported version number: string
ORA-19563string header validation failed for file string

TOP 20 Oracle errors
ORA-12504TNS:listener was not given the SERVICE_NAME in CONNECT_DATA
RMAN-20079full resync from primary database is not done
ORA-14411The DDL cannot be run concurrently with other DDLs
ORA-14760ADD PARTITION is not permitted on Interval partitioned objects
ORA-10877error signaled in parallel recovery slave string
ORA-32701Hang detected
ORA-00838Specified value of MEMORY_TARGET is too small, needs to be at least stringM
ORA-16957SQL Analyze time limit interrupt
ORA-16664unable to receive the result from a database
ORA-16766Redo Apply is stopped
RMAN-08132WARNING: cannot update recovery area reclaimable file list
ORA-00000normal, successful completion
ORA-16665timeout waiting for the result from a database
ORA-00837Specified value of MEMORY_TARGET greater than MEMORY_MAX_TARGET
RMAN-08137WARNING: archived log not deleted as it is still needed
DIA-48122error with opening the ADR block file [string] [string]
ORA-47988password should contain at least one numeric and one alphabetic character
IMP-00057Warning: Dump file may not contain data of all partitions of this table
ORA-55508Invalid input to Flashback Transaction Backout
ORA-00001unique constraint (string.string) violated

Your own TOP 20 Oracle errors
ORA-01792maximum number of columns in a table or view is 1000