NB-076
35 lines
961 B
Markdown
35 lines
961 B
Markdown
# 12-divide-100 — 100-Division File Splitter
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## 电信业务场景
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CDR数据100分割。将CDR数据按100件一个批处理单位进行分割，供后续系统处理。
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Demonstrates dividing input records into groups of 100:
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- **PERFORM VARYING counter**: Track record numbers across the loop
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- **DIVIDE ... GIVING REMAINDER**: Calculate file number from record count
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- **Close-write cycle**: Close old file, open new file at each boundary
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- Tested at boundary conditions: 100 (exact), 101 (one extra), 99 (one short)
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## Files
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| File | Purpose |
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|------|---------|
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| `main-12-divide-100.cbl` | COBOL program (fixed format) |
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| `data-gen.sh` | Generate N test records (default 101) |
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| `run.sh` | Compile + run 3 test cases |
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## Algorithm
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```
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DIVIDE record-count BY 100 GIVING Q REMAINDER R
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IF R = 1 → open new FILE-OUT-NN
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Write record to current file
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```
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## Output Files
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- FILE-OUT-01.DAT: records 1-100
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- FILE-OUT-02.DAT: records 101-200
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- etc.
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