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docs(options): update the EDIT and VIEW size limits

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DC_MAXOBS_WEBEDIT 100 -> 250, DC_MAXOBS_WEBVIEW 500 -> 2000, and a new
DC_MAXCELLS_WEBEDIT (200000) which is applied together with the EDIT
observation limit - whichever is reached first.
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dc committed 2026-10-03 11:57:36 +00:00
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docs/dcc-options.md
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@@ -20,16 +20,23 @@ Currently used scopes include:
### DC_EMAIL_ALERTS
Set to YES or NO to enable email alerts. This requires email options to be preconfigured (mail server etc).
### DC_MAXCELLS_WEBEDIT
By default, a maximum of 200,000 cells (observations multiplied by variables) can be edited in the browser at one time. This limit is applied together with [DC_MAXOBS_WEBEDIT](#dc_maxobs_webedit) - whichever is reached first.
The cell count matters because the cost of an EDIT screen load tracks the number of cells, not the number of rows. A 10 column table is comfortable at 250 rows, but 250 rows of a 1000 column table is 250,000 cells.
### DC_MAXOBS_WEBEDIT
By default, a maximum of 100 observations can be edited in the browser at one time. This number can be increased, but note that the following factors will impact performance:
By default, a maximum of 250 observations can be edited in the browser at one time. This number can be increased, but note that the following factors will impact performance:
* Number of configured [Validations](/dcc-validations)
* Browser type and version (works best in Chrome)
* Number (and size) of columns
* Speed of client machine (laptop/desktop)
A wide table can reach the [DC_MAXCELLS_WEBEDIT](#dc_maxcells_webedit) limit well before this one, so increase both together.
### DC_MAXOBS_WEBVIEW
By default, a maximum of 500 observations can be viewed in the browser at one time. Please see previous section for items to consider if increasing this value.
By default, a maximum of 2000 observations can be viewed in the browser at one time. Please see previous section for items to consider if increasing this value.
### DC_REQUEST_LOGS
On SASjs Server and SAS9 Server types, at the end of each DC SAS request, a record is added to the [MPE_REQUESTS](/tables/mpe_requests) table. In some situations this can cause table locks. To prevent this issue from occuring, the `DC_REQUEST_LOGS` option can be set to `NO` (Default is `YES`).