# Conversion Processing
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| A | Algebraic functions. |
| B | Subroutine call. |
| C | Concatenation. |
| D | Internal and external dates. |
| D1 and D2 | Associates controlling and dependent fields. |
| F | Mathematical functions. |
| G | Group extract. |
| JBCUserConversions | How to create user-defined conversion codes |
| I Types | I and D type attribute definition records |
| L | Length. |
| MC | Mask character. |
| MD | Mask decimal. |
| MK | Mask metric. |
| ML and MR | Mask with justification. |
| MP | Mask packed decimal. |
| MS | Mask Sequence. |
| MT | Mask time. |
| P | Pattern match. |
| R | Range check. |
| S | Substitution. |
| T | Text extraction. |
| TFILE | File translation. |
| U | User exits |
| W | Timestamp conversions |
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