在 sqlldr 的控制文件中使用 varchar

Question

我有一个通过 sql 查询动态创建 CTL 文件的进程。而且我必须将文件名插入 oracle table。我能够让文件名显示在查询中，但它一直拒绝它。 ctls 只接受数字吗？因为如果我将它硬编码为一个数字，它就会起作用。如果我将它硬编码为 varchar，它将拒绝它。如何在加载时获取要插入的文件名？

           '  LEAD_TIME,' || chr (10) ||
       '  DELIVERY_TIME,' || chr (10) ||
       '  DELIVERY_NO,' || chr (10) ||
       '  FREQUENCY,' || chr (10) ||
       '  FREQUENCY_UNIT,' || chr (10) ||
       '  MODE_TYPE,' || chr (10) ||
       '  AUDIT_LOG_ID "' || MAX(audit_log_id) || '",' || chr (10) ||
       '  STAGING_STATUS_ID "1",' || chr (10) ||
       '  FILENAME "&fname",' || chr (10) ||
       '  LINENO SEQUENCE(1)' || chr (10) ||
       ' )' || chr (10)
   from   audit_log
   where filename_orig = '&fname';

spool off

这是运行 sqlldr 的输出。它正确显示了文件名，但仍然拒绝输入。

       Column Name                  Position   Len  Term Encl Datatype
------------------------------ ---------- ----- ---- ---- ---------------------
VENDOR                              FIRST     *   ,       CHARACTER
COMM_CONTRACT                        NEXT     *   ,       CHARACTER
SERV_CONTRACT                        NEXT     *   ,       CHARACTER
ADDR_CHAIN                           NEXT     *   ,       CHARACTER
STORE                                NEXT     *   ,       CHARACTER
SITE_GROUP                           NEXT     *   ,       CHARACTER
START_DATE                           NEXT     *   ,       CHARACTER
END_DATE                             NEXT     *   ,       CHARACTER
ORDER_DAY                            NEXT     *   ,       CHARACTER
ORDER_TIME                           NEXT     *   ,       CHARACTER
LEAD_TIME                            NEXT     *   ,       CHARACTER
DELIVERY_TIME                        NEXT     *   ,       CHARACTER
DELIVERY_NO                          NEXT     *   ,       CHARACTER
FREQUENCY                            NEXT     *   ,       CHARACTER
FREQUENCY_UNIT                       NEXT     *   ,       CHARACTER
MODE_TYPE                            NEXT     *   ,       CHARACTER
AUDIT_LOG_ID                         NEXT     *   ,       CHARACTER
    SQL string for column : "26004459"
STAGING_STATUS_ID                    NEXT     *   ,       CHARACTER
    SQL string for column : "1"
FILENAME                             NEXT     *   ,       CHARACTER
    SQL string for column : "filenamexxx.csv"
LINENO                                                    SEQUENCE (1, 1)

value used for ROWS parameter changed from 64 to 51

Table DISA_STAGING_SUPP_SCHEDULE:
  0 Rows successfully loaded.
  6 Rows not loaded due to data errors.
  0 Rows not loaded because all WHEN clauses were failed.
  0 Rows not loaded because all fields were null.

Answer 1

您应该会看到类似 ORA-00984: column not allowed here 的错误。 filenamexxx.csv 被视为列名而不是值，因为它没有被引用；您可以将其更改为生成为：

FILENAME "'filenamexxx.csv'"

为此，您的查询在替换变量周围转义了单引号：

       '  FILENAME "''&fname"'',' || chr (10) ||

或者如果您愿意，另一种引用机制：

       q'[  FILENAME "'&fname"',]' || chr (10) ||

在 sqlldr 的控制文件中使用 varchar

Using varchar in a control file for sqlldr

sql

oracle

controls

sql-loader

controlfile