| Number of cases (rows)
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This group box contains the following options.
- Automatically determine: The number of cases or rows returned from a query might not be known when an analysis requires this information. For example, when a server side forward only cursor is used, the exact number of cases is not known until a complete pass through the data has been done, or if using asynchronous fetching with a client side cursor, the exact number of cases is not known until the fetching completes. If the
Automatically determine option button is selected, then when an analysis needs to know the number of cases before this information is available, a separate query is run to determine the number of cases.
- Assume fewer than: If this option button is selected, all requests for the number of cases in the data set return this number. If there are actually less than this number of cases, the analysis treats the 'missing' cases as missing data. If there are more cases than this, the analysis ignores them.
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| Preview the first _ cases
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This box specifies the number of rows returned from the query are displayed in the document. Note that when a forward only cursor is used, only one case is previewed. This is to prevent advancing the cursor beyond the first case; otherwise if and when an analysis requires the first case, the query would have to be re-run.
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| Trim trailing blanks from text fields
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Select this check box to automatically remove trailing blanks from text fields during the processing of text or data from streaming database connections. Typically, trailing blank spaces are only used to pad text fields to a specific length; selecting this option (leaving this default) typically improves the speed with which the system processes text values.
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