我从 sql loader 得到以下日志消息。此消息是否“未加载行，因为所有 WHEN 子句均失败。” 一个真正的错误？最后我有一条日志消息说总记录读取为 74256。在 ctl 控制文件中，我在每行中看到记录类型的 38-39 字符，并且基于它我将插入到不同的表中。
Table TEST1_AA:
42233 Rows successfully loaded.
0 Rows not loaded due to data errors.
32023 Rows not loaded because all WHEN clauses were failed.
0 Rows not loaded because all fields were null.
Table IIR_TEST2_BB:
0 Rows successfully loaded.
0 Rows not loaded due to data errors.
74256 Rows not loaded because all WHEN clauses were failed.
0 Rows not loaded because all fields were null.
Table IIR_TEST3_CC:
31 Rows successfully loaded.
0 Rows not loaded due to data errors.
74225 Rows not loaded because all WHEN clauses were failed.
0 Rows not loaded because all fields were null.
Total logical records skipped: 0
Total logical records read: 74256
Total logical records rejected: 0
Total logical records discarded: 1
示例 CTL 文件
选项（错误=9999999999，静默=（反馈），行=1000）
加载数据
进入表 test_HD
附加
当 (038:039) = 'HD'
(
record_sequence_no POSITION(029:037) 十进制外部
,line_type POSITION(040:040) CHAR
,header_record_type POSITION(041:041) CHAR
,enquiry_telephone_number POSITION(042:052) CHAR
,total_amt_last_bill POSITION(053:066) 十进制外部
,total_payment_received POSITION(067:080) 十进制外部
)
进入表 test_AS
附加
当 (038:039) = 'AS'
(
record_sequence_no POSITION(029:037) 十进制外部
,line_type POSITION(040:040) CHAR
,girn 位置(041:047) 字符
,charge_desc POSITION(048:077) 字符
}