SCT CTLR DESCRIBED NEAR LOSS OF SEPARATION WHEN SNA TWR FAILED TO ENTER CORRECT AUTOMATED DATA BLOCK INFO; NO OPERROR RECORDED.

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CLASSIC BREAKDOWN OF THE CHAIN. SNA TWR MISHANDLED AN ACFT; THE P46T AND PUT HIM OUT ON A PQ CLASS DEP WITH THE WRONG INFO IN THE DATA BLOCK. AT THE ADJACENT SECTOR; THE CTLR RECEIVED A LATE FREQ SWITCH ON THE A320. WHILE WE WERE WORKING TO FIX OUR PROBS; THE ADJACENT CTLR WAS TURNING THE A320 SBOUND TOWARD OUR AIRSPACE. SINCE THE DATA BLOCK WAS NOT DISPLAYED ON THE SCOPE DUE TO A TECHNICAL GLITCH; HE/SHE WAS UNAWARE OF THE TFC. I REALIZED IT AND ESTABLISHED VISUAL AND THEN LEANED OVER AND MADE THE POINT OF TELLING HIM/HER AND POINTING AT THE TARGETS. HE/SHE WAS TURNED AWAY FROM HIM/HER SCOPE ENGAGED IN A CONVERSATION WITH ANOTHER CTLR. ONE OF THE CTLRS ACROSS THE ROOM HEARD ME MAKE THE COORD I WAS SO LOUD. HE/SHE TURNED THE A320 LATE AND SO THERE WAS AN RA AND INVESTIGATION. WHILE TECHNICALLY; NOTHING HAPPENED; IT WAS UGLY. THIS INCIDENT ONLY GOES TO SHOW WHAT HAPPENS WHEN INEXPERIENCED CTLRS ARE PLACED UNDER SUCH STRAIN DUE TO OVERTIME AND FATIGUE. I HAVE HAD A PARADIGM SHIFT IN MY MODUS OPERANDI. IT IS IMPERATIVE THAT CTLRS; NEW ONES IN PARTICULAR; MAKE A COMMITMENT TO BEING FOCUSED AND IN THE GAME. I SEE SO MANY NEW CTLRS WHO ARE NOT IN THE GAME AS MUCH AS THEY NEED TO BE. I MAY HAVE YRS OF EXPERIENCE; BUT I AM A ROOKIE IN THIS ARENA. MOST OF MY COLLEAGUES IN TRAINING ARE ALSO LOW TIME RADAR CTLRS WITH LITTLE TIME IN THE PROFESSION COMPARED TO ME. IT IS A RECIPE FOR DISASTER WHEN THE EXPERIENCE GOES OUT THE DOOR; AND THE FAA IS REMISS IN NOT FIXING THE PROB WHEN THEY WERE WARNED. WE NEED LESS OVERTIME; ESPECIALLY FOR THE NEW CTLRS; AND MORE BODIES WHO CAN DO THE TOUGH JOBS.