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Реферат Інструмент OLE





s that fall within the range of records specified by the scope are copied to the new file.

The default scope for EXPORT is ALL records.


FOR


If the FOR clause is included, only records that satisfy the logical condition are copied to the new file. Including the FOR clause lets you conditionally copy records, filtering out undesired records. p> Rushmore optimizes an EXPORT ... FOR command if is an optimizable expression. For best performance, use an optimizable expression in the FOR clause. A discussion of Rushmore optimizable expressions appears in the Optimizing Your Application chapter in the FoxPro Developer's Guide.


WHILE


If the WHILE clause is included, records are copied to the new file for as long as the logical expression evaluates to true (. T.).


NOOPTIMIZE


To cause Rushmore not to optimize EXPORT, include NOOPTIMIZE. For more information, see SET OPTIMIZE and the Rushmore discussion in the Optimizing Your Application chapter of the FoxPro Developer's Guide

.


TYPE


You must specify the type of file to be created. The TYPE key word is optional, but you must specify one of the following file types.


DIF


When you specify DIF, each field from a FoxPro table/.DBF becomes a vector (column) and each record becomes a tuple (row) in a DIF (Data Interchange Format) file, used by VisiCalc. The new file name is assigned a. DIF extension if an extension isn't included in .


MOD


Use the MOD clause to export to a file in Microsoft Multiplan version 4.01 MOD format. The new file name is assigned an. MOD extension if you don't include an extension in .


SYLK


A SYLK file is a Symbolic Link interchange format (used by Microsoft Multiplan) in which each field from a FoxPro table/.DBF becomes a column in the spreadsheet and each record becomes a row. By default, SYLK file names have no extension.


WK1


Include this option to create a Lotus 1-2-3 spreadsheet from a FoxPro table/.DBF. A . WK1 extension is assigned to the spreadsheet file name for use with Lotus 1-2-3 revision 2.x. Each field from the table/.DBF becomes a column in the new spreadsheet, and each record in the table/.DBF becomes a spreadsheet row.


WKS


A Lotus 1-2-3 spreadsheet can be created from a FoxPro table/.DBF with this option. A. WKS extension is assigned to the spreadsheet file name for use with Lotus 1-2-3 revision 1-A. Each field from the table/.DBF becomes a column in the new spreadsheet, and each record becomes a row in the spreadsheet.


WR1


Include this option to create a Lotus Symphony spreadsheet from a FoxPro table/.DBF. A . WR1 extension is assigned to the spreadsheet for use with Sympho...


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