Menu
When you create an index, you supply an expression, which can contain table field names, that specifies how table records should be organized. Visual FoxPro creates an index key for each record in the table based on the index expression and stores the index keys in an index file. The index file contains and maintains pointers to records in the table (.dbf) file and is organized according to the index key values. An index file is separate from but associated with a.dbf file. Visual FoxPro supports the following types of index files: structural compound index (.cdx), nonstructural compound index (.cdx) files, and standalone index (.idx) files. The structural and nonstructural.cdx files can contain multiple indexes, which have names, or tags, that identify them, while the standalone.idx file contains only a single index.
The following diagram shows a.cdx file with three index names, or tags. Two of the index tags, empid and lastname, represent indexes based on single fields. The index tag, cntrylast, organizes records using a simple two-field index expression.
Index file type Description Contains Limits Structural compound index (.cdx) files Opens and closes with the table automatically. Uses same base name as the table file name. Multiple index keys 240-character limit on evaluated expression Nonstructural compound index (.cdx) files Must be opened explicitly. Uses a name different from the base table name and is defined by the user. Multiple index keys 240-character limit on evaluated expression Standalone index (.idx) files Must be opened explicitly. Uses a name different from the base table name and is defined by the user. Single index key 100-character limit on evaluated expression Structural Compound Index Files.
When you create an index for a table, Visual FoxPro automatically creates a structural.cdx file to store the index. The term 'structural' refers to the fact that Visual FoxPro treats the structural.cdx file as an intrinsic part of the table, opens and closes the structural.cdx file automatically when you open and close the table, and maintains the structural.cdx file automatically when you add, change, or delete table records. If a Visual FoxPro table has an index file associated with it, it is typically a structural.cdx file. A structural.cdx file always has the same base name as the table (.dbf) file name. The structural.cdx file can contain multiple indexes in the same file.
It is recommended that you use the structural.cdx file for indexes you frequently use and need to maintain on a regular basis, such as those used to organize records for daily viewing, data entry, Rushmore Query Optimization, or frequently printed reports. Nonstructural.cdx files store multiple indexes that are not frequently used. You can use a nonstructural.cdx file when you want to create multiple indexes for a special purpose but do not want your application to maintain these indexes on a continuing basis. A nonstructural.cdx file always has a name that is different from the table (.dbf) file name and is defined by the user. For example, suppose your application contains a special set of reports that analyzes data based on fields not normally indexed. Legacy genealogy software programs. You can create a nonstructural.cdx file containing the appropriate indexes, run the reports, and then delete the nonstructural.cdx file.
Available primarily for backward compatibility, a standalone.idx file stores a single index key that is temporary or less frequently used. You can use standalone (.idx) files as temporary indexes by creating or reindexing them immediately before you use them.
A standalone.idx file always has a name that is different from the table (.dbf) file name and is defined by the user. For example, suppose you have an index that you use only for quarterly or annual summary reports. Instead of including this index in the structural.cdx file, where it is maintained every time you use the table, you can create a standalone.idx file to store this index. You can create as many.idx files as you want for a particular table.
Visual FoxPro Examples (Visual FoxPro) Delete File Permanently deletes a file owned by the user without moving it to the trash. If the target is a folder, all descendants owned by the user are also deleted. See for more information. Chilkat ActiveX Downloads LOCAL lnSuccess LOCAL loGAuth LOCAL loRest LOCAL lnBAutoReconnect LOCAL lcFileId LOCAL loSbPath LOCAL lcJsonResponse lnSuccess = 1.
![]()
It requires the Chilkat API to have been previously unlocked. See for sample code. This example uses a previously obtained access token having permission for the.
Google Drive scope. LoGAuth = CreateObject( ') loGAuth. AccessToken = 'GOOGLE-DRIVE-ACCESS-TOKEN' loRest = CreateObject( '). Connect using TLS. LnBAutoReconnect = 1 lnSuccess = loRest. Connect( 'www.googleapis.com', 443, 1,lnBAutoReconnect).
Provide the authentication credentials (i.e. The access token) loRest. SetAuthGoogle(loGAuth). To delete a file, we must use the fileId.
This must've been obtained by listing or searching for the file. to get the metadata. Assume we already did that an have the fileId lcFileId = '0B53Q6OSTWYoldUprZVU1ZVQ5Z0k' loSbPath = CreateObject( ') loSbPath. Append( '/drive/v3/files/') loSbPath. Append(lcFileId) lcJsonResponse = loRest. FullRequestNoBody( 'DELETE',loSbPath. GetAsString) IF (loRest.
LastMethodSuccess 1) THEN? LastErrorText RELEASE loGAuth RELEASE loRest RELEASE loSbPath CANCEL ENDIF. A successful response will have a status code equal to 204 and the response body is empty. (If not successful, then there should be a JSON response body with information.) IF (loRest.
ResponseStatusCode 204) THEN? 'response status code = ' + STR(loRest. 'response status text = ' + loRest.
'response header: ' + loRest. 'response JSON: ' + lcJsonResponse RELEASE loGAuth RELEASE loRest RELEASE loSbPath CANCEL ENDIF? 'File deleted.'
Visual Foxpro 9.0 Download
RELEASE loGAuth RELEASE loRest RELEASE loSbPath © 2000-2016 Chilkat Software, Inc. All Rights Reserved.
SET SAFETY OFF IF DELETEFOLDER('c: $incoming testdir') MESSAGEBOX('Success',48,'Done') ELSE MESSAGEBOX('Failed',48,'Not Done') ENDIF FUNCTION DELETEFOLDER. simple function that gets all the file and folder names (using the subfoldersearch function).
and then deletes them PARAMETERS m.FOLDERNAME PRIVATE m.FOLDERNAME,m.FLG M.FLG =.T. gathers the names and folders into two tables (TMPFILES and TMPDIRS) in the c: temp folder SUBFOLDERSEARCH(m.FOLDERNAME,'.' ,'c: temp '.T.,'TMPFILES','TMPDIRS'.F.) SELECT 0 USE C: TEMP TMPFILES SET ORDER TO SELECT TMPFILES GO TOP. scan the files in any order you like DO WHILE.NOT.
EOF. delete each file DELETE FILE (ALLTRIM(FULLNAME)) SKIP ENDDO USE SELECT 0 USE C: TEMP TMPDIRS SET ORDER TO GO BOTTOM. scan the folders in reverse order (deepest first) DO WHILE.NOT. BOF IF DIRECTORY(ALLTRIM(FPATH)).
if they are still there - remove the folder RMDIR (ALLTRIM(FPATH)) ENDIF SKIP-1 ENDDO USE IF DIRECTORY(m.FOLDERNAME). if the folder is still there. You failed M.FLG =.F. ENDIF RETURN(m.FLG) FUNCTION SUBFOLDERSEARCH PARAMETERS m.TOPLEVEL,m.MASK,m.TEMPDIR,m.PROGRESS,m.TEMPFILE,m.TMPDIRS,m.LEAVEOPEN PRIVATE m.TOPLEVEL,m.MASK,m.TEMPDIR,m.TEMPFILE,m.TMPDIRS,m.LEAVEOPEN,m.PROGRESS,I,X,m.LASTPATH,NUMFILES,NUMDIR PRIVATE m.OLDAREA DIMENSION ALIST1,5,FLIST1,5 IF PCOUNT ' ',' ',') WAIT 'Checking.'
+ m.LASTPATH WINDOW NOWAIT TIMEOUT 1. CHECK FOR FILES MATCHING MASK NUMFILES = ADIR(FLIST,m.LASTPATH+m.MASK) FOR I = 1 TO NUMFILES. IGNORE THE. ONES IF FLISTi,1 '.' FLISTi,1 '.' Martin, I've also read that some companies disable the Windows Scripting Host for security reasons, but I've never come across anyone who actually does that. I use WSH in all my apps, and don't recall it ever being a problem.
I don't even know how to go about disabling it. Ev nova crack torrent. But no doubt someone will prove me wrong. Paul: Are you still here? Your feedback on these suggestions would be appreciated.
File Shredder
Mike Mike Lewis (Edinburgh, Scotland) RE: Delete a folder (Programmer) 17 Nov 06 08:23. Hello all I'm sorry, but with a new test this morning the following code doesn't work: RD /S /Q ((rstam)+'familie-boek &selectiex') I want to do the following: In my Familie-boek there is a folder SelectieX with at maximum 2 subfolders: Reserve and History Selectiex contains a database and some other files, using delete database selectiex deletetables I can remove the database, but I want to remove in one time the files in the subfolders, the subfolders, the tables in the folder and the name of the folder.( at the moment I do the following cd to reserve del., rd reserve.) How can I do it?
Paul RE: Delete a folder (Programmer) 19 Nov 06 04:13.
DELETE TAG Command. 2 minutes to read. Contributors. In this article Removes a tag or tags from a compound index (.cdx) file. Syntax DELETE TAG TagName1 OF CDXFileName1 , TagName2 OF CDXFileName2.
Microsoft Visual Foxpro
Or DELETE TAG ALL OF CDXFileName Arguments TagName1OF CDXFileName1, TagName2OF CDXFileName2. Specifies a tag to remove from a compound index file. You can delete multiple tags with one DELETE TAG by including a list of tag names separated by commas. If two or more tags with the same name exist in the open index files, you can remove a tag from a specific index file by including OF CDXFileName. ALL OF CDXFileName Removes every tag from a compound index file. If the current table has a structural compound index file, all tags are removed from the index file, the index file is deleted from the disk, and the flag in the table's header indicating the presence of an associated structural compound index file is removed.
Use ALL with OF CDXFileName to remove all tags from an open compound index file other than the structural compound index file. Remarks Compound index files, created with INDEX, contain tags corresponding to index entries. DELETE TAG is used to remove a tag or tags from open compound index files. You can delete only tags from compound index files open in the current work area. If you remove all the tags from a compound index file, the file is deleted from the disk.
Visual FoxPro looks first for a tag in the structural compound index file (if one is open). If the tag isn't in the structural compound index file, Visual FoxPro then looks for the tag in the other open compound index files.
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |