ReadRecords (Dataset function): Difference between revisions
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(Better document use of MIN and MAX parameters) |
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===Syntax terms=== | ===Syntax terms=== | ||
<table | <table> | ||
<tr><th>%stringlist</th> | <tr><th>%stringlist</th> | ||
<td>A <var>Stringlist</var> object variable to receive the blocks of data.</td></tr> | <td>A <var>Stringlist</var> object variable to receive the blocks of data.</td></tr> | ||
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<tr><th><var>Max</var></th> | <tr><th><var>Max</var></th> | ||
<td>This is an optional, [[Notation conventions for methods#Named parameters|name required]], numeric argument that sets an upper limit for the number of records to be read in by the method. Assuming that this can be | <td>This is an optional, [[Notation conventions for methods#Named parameters|name required]], numeric argument that sets an upper limit for the number of records to be read in by the method. Assuming that this limit can be accommodated by the CCATEMP resources of the job, the <var>Count</var> method against the target <var>Stringlist</var> object after the <var>ReadRecords</var> invocation completes will return the same value as the <var>Max</var> setting. | ||
<p> | |||
The default limit is | The default limit is to read all the records from the input dataset. </p></td></tr> | ||
<tr><th><var>Min</var></th> | <tr><th><var>Min</var></th> | ||
<td>This is an optional, name required, numeric argument that sets a minimum number of records to be read via the method. If this minimum number of record reads | <td>This is an optional, name required, numeric argument that sets a minimum number of records to be read via the method. If this minimum number of record reads is not achieved, the request is cancelled with: | ||
<p class="code">MSIR.0752: ... too few records available to meet requested minimum </p> | |||
<p> | |||
There is no default minimum value. </p></td></tr> | |||
</table> | </table> | ||
Latest revision as of 12:21, 25 April 2017
Read multiple records from this dataset (Dataset class)
This page is under construction.
Syntax
%sl = dataset:ReadRecords[( [Max= number], [Min= number])]
Syntax terms
| %stringlist | A Stringlist object variable to receive the blocks of data. |
|---|---|
| dataset | A reference to an instance of a Dataset object. |
| Max | This is an optional, name required, numeric argument that sets an upper limit for the number of records to be read in by the method. Assuming that this limit can be accommodated by the CCATEMP resources of the job, the Count method against the target Stringlist object after the ReadRecords invocation completes will return the same value as the Max setting.
The default limit is to read all the records from the input dataset. |
| Min | This is an optional, name required, numeric argument that sets a minimum number of records to be read via the method. If this minimum number of record reads is not achieved, the request is cancelled with:
MSIR.0752: ... too few records available to meet requested minimum There is no default minimum value. |