ES - Empty Line Suppression

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# ES - Empty Line Suppression

With this session parameter, you can suppress the printing of empty lines generated by a `DISPLAY` or `WRITE` statement.

Possible settings | `ON` | A line resulting from a `DISPLAY` or `WRITE` statement which contains all blank values will not be printed. Note This setting is particularly useful when displaying arrays (for example, multiple-value fields or fields contained within a periodic group) to avoid printing a large number of empty lines.
`OFF` | Empty line suppression is disabled.
Default setting | `OFF` |
Specification within session | yes |
Applicable statements | `FORMAT` |
`DISPLAY` `WRITE` | Parameter may be specified at statement level and/or at element level.
Applicable command | none |

Notes:

1. To achieve empty suppression for numeric values, the field must be specified with `ZP=OFF` and `ES=ON` in order to have null values printed as blanks. See also the session parameters `IS` and `ZP`.
2. See also Parameters to Influence the Output of Fields in the Programming Guide.

#### Example:

    DISPLAY (ES=ON) NAME CITY