脚本不显示 sqlcode

Question

我有很多 shell 脚本可以在 Oracle 数据库上执行过程和其他任务。通常，它们具有相同的结构，检查 envvars，执行 sql 并使用 show sqlcode 来了解脚本是否成功执行。

这是代码：

#!/bin/bash
# Check for var's in another script
. /home/oracle/cron/scripts/exp_variaveis.sh

$ORACLE_HOME/bin/sqlplus User/pass@database <<!
spool /home/oracle/cron/log/some_name.log_$date_log

set serveroutput on
DECLARE
   V_QTD NUMBER;
BEGIN
SELECT COUNT(*) QTD
INTO V_QTD
FROM D.TB_R_A TRA
   WHERE TRA.CD_STATUS = 'A'
     AND TRA.CD_T_AUT = 'E'
     AND TRA.DT_P < TRUNC(SYSDATE);

  IF V_QTD = 0 THEN 
    DBMS_OUTPUT.PUT_LINE('Sem resgates para serem expirados.');
  ELSE

  FOR R1 IN (SELECT TRA.CD_R, TRA.CD_A, TRA.CD_O
             from D.TB_R_A TRA
                WHERE TRA.CD_STATUS = 'A'
                  AND TRA.CD_T_AUT = 'E'
                  and TRA.DT_P < TRUNC(sysdate))
    LOOP   

  BEGIN

    UPDATE D.TB_R_A T
       SET T.CD_STATUS = 'E'
         WHERE T.CD_R = R1.CD_R;

    COMMIT;

    DBMS_OUTPUT.PUT_LINE('Resgate expirado: ' || R1.CD_R);

     EXCEPTION
         WHEN OTHERS THEN
           ROLLBACK;
           DBMS_OUTPUT.PUT_LINE('Falha na expiracao do resgate: ' || R1.CD_R);
      END;

    END LOOP;

  END IF; 

END;
-- command show slqcode to know if was executed with success
show sqlcode

spool off
exit
!
# A variavel recebe a instrucao de busca do arquivo e se existir reporta o "sqlcode 0" que equilave a "SUCESSO"
sql_code=`grep -i "sqlcode 0" /home/oracle/cron/log/some_name.log_$date_log`

# A variavel trata a instrucao acima e processa os dados nos textos e   operacoess com arquivos (awk) mostrando de forma CSV (-F)
# apresentando as strings da segunda coluna '{ print  }'
ret_code=`echo $sql_code | awk -F" " '{ print  }'`

# Se a variavel $ret_code for diferente de 0
if [ "$ret_code" != 0 ]

then
# Send error message
mail dbajob@domain.com -s "!! ERROR !! CRON => DATABASE - SOME TEXT HERE" < /home/oracle/cron/log/some_name.log_$date_log
exit 1
else
# Send sucessful message
mail dbajob@domain.com -s "Job OK CRON => DATABASE - SOME TEXTE HERE" < /home/oracle/cron/log/some_name.log_$date_log
exit 0
fi

我的问题是：此 sql 不输出 sql 代码，因此如果我的脚本在日志中找不到字符串 "sqlcode"，它会发送一条错误消息即使执行成功了。

请告诉我哪里出了问题。

Answer 1

请注意，如 the docs:

中所述，当在异常处理程序之外使用时，SQLCODE 将始终 return 0

SQLCODE is only useful in an exception handler. Outside a handler, SQLCODE always returns 0.

但是您甚至看不到 0 输出的原因是您从不执行 PL/SQL 代码块，因此 show 语句不会被识别为立即执行的语句。您需要添加一行 forward slash (/):

/(slash)

Executes the most recently executed SQL command or PL/SQL block which is stored in the SQL buffer.

所以把斜杠放在这里：

    END LOOP;
  END IF; 
END;
/
-- command show slqcode will always show 0.
show sqlcode

脚本不显示 sqlcode

Script doesn't show sqlcode

sql

oracle

bash

shell

sqlplus