ORA-12154: TNS could not resolve the connect identifier specified

ORA-12154: TNS could not resolve the connect identifier specified

ORA 12154: TNS Listener does not currently know of service requested

Solution Checklist:

ORA 12154 looks a generic & very much known but getting cause for this error is the trick to resolve it quickly. Below 8 point checklist will ensure all basic's are followed & 9th point will be the final one which will take you closure to the resolution

BR0123E Format error found in line at location arch_last_get-10

Error:

brarchive -u / -c -d util_file -r /oracle/PRD/102_64/dbs/initPRD-logs.utl -s
BR0002I BRARCHIVE 7.00 (40)BR0006I Start of offline redo log processing: aemjygtf.sve 2013-10-26 14.42.59
BR0484I BRARCHIVE log file: /oracle/PRD/saparch/aemjygtf.sve
BR0477I Oracle pfile /oracle/PRD/102_64/dbs/initPRD.ora created from spfile /oracle/PRD/102_64/dbs/spfilePRD.ora
BR0123E Format error found in line 1830934 of /oracle/PRD/saparch/archPRD.log at location arch_last_get-10
BR0121E Processing of log file /oracle/PRD/saparch/archPRD.log failed
BR0016I 0 offline redo log files processed, total size 0.000 MB
BR0007I End of offline redo log processing: aemjygtf.sve 2013-10-26 14.43.04
BR0280I BRARCHIVE time stamp: 2013-10-26 14.43.04
BR0005I BRARCHIVE terminated with errors

Cause:

BR0439E No offline redolog files found in ..processing for device type TAPE/BACKINT/RMAN in recovery interval

Error:

brrestore -a 265931-265933=/oracle/PRD/oraarch/ -r /oracle/PRD/102 _64/dbs/initPRD.utl

BR0401I BRRESTORE 7.20 (33)
BR0405I Start of file restore: remjonan.rsa 2013-10-24 15.04.25
BR0484I BRRESTORE log file: /oracle/PRD/sapbackup/remjonan.rsa

BR0461W Redolog sequence number in line 1830920 of /oracle/PRD/saparch/archPRD.log not ascending
BR0462W All lines in /oracle/PRD/saparch/archPRD.log till line 1830920 will be ignored
BR0461W Redolog sequence number in line 1831168 of /oracle/PRD/saparch/archPRD.log not ascending
BR0462W All lines in /oracle/PRD/saparch/archPRD.log till line 1831168 will be ignored

BR0439E No offline redolog files found in /oracle/PRD/saparch/archPRD.log for processing for device type TAPE/BACKINT/RMAN in recovery interval of 30 days

BR0406I End of file restore: remjonan.rsa 2013-10-24 15.04.27
BR0280I BRRESTORE time stamp: 2013-10-24 15.04.27
BR0404I BRRESTORE terminated with errors

OR

brrestore -a 265931-265982=/oracle/PRD/oraarch/ -r /oracle/PRD/102 _64/dbs/initPRD.utl