ADO Example TextFile: Difference between revisions
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The following example | The following example | ||
* Reads all records with value "Paris" in field "City" of a text file and displays fields "City" and "State" of all found records | * Reads all records with value "Paris" in field "City" of a text file and displays fields "City" and "State" of all found records | ||
* The fields in the file are | * The fields in the file are fixed length | ||
* The file has no header row | * The file has no header row | ||
* Schema.ini needs to be in the same directory as the text file | * Schema.ini needs to be in the same directory as the text file | ||
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Global $oADOConnection = ObjCreate("ADODB.Connection") ; Create a connection object | Global $oADOConnection = ObjCreate("ADODB.Connection") ; Create a connection object | ||
Global $oADORecordset = ObjCreate("ADODB.Recordset") ; Create a recordset object | Global $oADORecordset = ObjCreate("ADODB.Recordset") ; Create a recordset object | ||
Global $sADOConnectionString = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' & @ScriptDir & ';Extended Properties="Text;HDR= | Global $sADOConnectionString = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' & @ScriptDir & ';Extended Properties="Text;HDR=No"' | ||
$oADOConnection.Open($sADOConnectionString) ; Open the connection | $oADOConnection.Open($sADOConnectionString) ; Open the connection | ||
Global $sADOSQL = 'Select City,State From ADO_Example_TextFile_Schema.txt Where City="Paris"' ; Select all records with the specified content and select two fields | Global $sADOSQL = 'Select City,State From ADO_Example_TextFile_Schema.txt Where City="Paris"' ; Select all records with the specified content and select two fields | ||
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$oADOConnection = 0 ; Release the connection object | $oADOConnection = 0 ; Release the connection object | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Input file "Schema.ini": | |||
[ADO_Example_TextFile_Schema.txt] | |||
Format=FixedLength | |||
Col1=City Text Width 6 | |||
Col2=State Text Width 50 | |||
Input file "ADO_Example_TextFile_Schema.txt": | Input file "ADO_Example_TextFile_Schema.txt": | ||
Paris Arkansas | Paris Arkansas | ||
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ViennaSouth Dakota | ViennaSouth Dakota | ||
ViennaTexas | ViennaTexas | ||
ViennaWashington D.C. | |||
ViennaVirginia | ViennaVirginia | ||
ViennaWest Virginia | ViennaWest Virginia | ||
[[Category:Tutorials]][[Category:ADO]] | [[Category:Tutorials]][[Category:ADO]] |
Revision as of 14:12, 5 January 2014
Read text file without header
The following example
- Reads all records of a text file and displays all fields for each record
- The fields in the file are delimited by a comma
- The file has no header row
Global $oADOConnection = ObjCreate("ADODB.Connection") ; Create a connection object
Global $oADORecordset = ObjCreate("ADODB.Recordset") ; Create a recordset object
Global $sADOConnectionString = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' & @ScriptDir & ';Extended Properties="Text;HDR=NO;FMT=Delimited(,)"'
$oADOConnection.Open($sADOConnectionString) ; Open the connection
Global $sADOSQL = "Select * From " & "ADO_Example_TextFile_NoHDR.txt" ; Select all records and all fields
$oADORecordset.Open($sADOSQL, $oADOConnection) ; Issue the SQL query
With $oADORecordset
While Not .EOF ; repeat until End-Of-File (EOF) is reached
ConsoleWrite(.Fields(0).Value & "|" & .Fields(1).Value & "|" & .Fields(2).Value & "|" & .Fields(3).Value & @CR)
.MoveNext ; Move To the Next record
WEnd
EndWith
$oADORecordset.Close ; Close the recordset
$oADORecordset = 0 ; Release the connection object
$oADOConnection.Close ; Close the connection
$oADOConnection = 0 ; Release the connection object
Input file "ADO_Example_TextFile_NoHDR.txt":
11,12,13,14 21,22,23,24
Read text file with header
The following example
- Reads all records with value "Paris" in field "City" of a text file and displays fields "City" and "State" of all found records
- The fields in the file are delimited by a comma
- The file has a header row
Global $oADOConnection = ObjCreate("ADODB.Connection") ; Create a connection object
Global $oADORecordset = ObjCreate("ADODB.Recordset") ; Create a recordset object
Global $sADOConnectionString = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' & @ScriptDir & ';Extended Properties="Text;HDR=YES;FMT=Delimited(,)"'
$oADOConnection.Open($sADOConnectionString) ; Open the connection
Global $sADOSQL = 'Select City,State From ADO_Example_TextFile_HDR.txt Where City="Paris"' ; Select all records with the specified content and select two fields
$oADORecordset.Open($sADOSQL, $oADOConnection) ; Issue the SQL query
With $oADORecordset
While Not .EOF ; repeat until End-Of-File (EOF) is reached
ConsoleWrite(.Fields("City").Value & "|" & .Fields("State").Value & @CR)
.MoveNext ; Move To the Next record
WEnd
EndWith
$oADORecordset.Close ; Close the recordset
$oADORecordset = 0 ; Release the connection object
$oADOConnection.Close ; Close the connection
$oADOConnection = 0 ; Release the connection object
Input file "ADO_Example_TextFile_HDR.txt":
City,State Paris,Arkansas Paris,Idaho Paris,Illinois Paris,Iowa Paris,Kentucky Paris,Maine Paris,Michigan Paris,Mississippi Paris,Missouri Paris,NewYork Paris,Ohio Paris,Pennsylvania Paris,Tennessee Paris,Texas Paris,Virginia Paris,Wisconsin Vienna,Alabama Vienna,Georgia Vienna,Illinois Vienna,Louisiana Vienna,Maine Vienna,Maryland Vienna,Missouri Vienna,New Jersey Vienna,New York Vienna,North Carolina Vienna,Ohio Vienna,South Dakota Vienna,Texas Vienna,Virginia Vienna,Washington D.C. Vienna,West Virginia
Read text file with Schema.ini
The following example
- Reads all records with value "Paris" in field "City" of a text file and displays fields "City" and "State" of all found records
- The fields in the file are fixed length
- The file has no header row
- Schema.ini needs to be in the same directory as the text file
Global $oADOConnection = ObjCreate("ADODB.Connection") ; Create a connection object
Global $oADORecordset = ObjCreate("ADODB.Recordset") ; Create a recordset object
Global $sADOConnectionString = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' & @ScriptDir & ';Extended Properties="Text;HDR=No"'
$oADOConnection.Open($sADOConnectionString) ; Open the connection
Global $sADOSQL = 'Select City,State From ADO_Example_TextFile_Schema.txt Where City="Paris"' ; Select all records with the specified content and select two fields
$oADORecordset.Open($sADOSQL, $oADOConnection) ; Issue the SQL query
With $oADORecordset
While Not .EOF ; repeat until End-Of-File (EOF) is reached
ConsoleWrite(.Fields("City").Value & "|" & .Fields("State").Value & @CR)
.MoveNext ; Move To the Next record
WEnd
EndWith
$oADORecordset.Close ; Close the recordset
$oADORecordset = 0 ; Release the connection object
$oADOConnection.Close ; Close the connection
$oADOConnection = 0 ; Release the connection object
Input file "Schema.ini":
[ADO_Example_TextFile_Schema.txt] Format=FixedLength Col1=City Text Width 6 Col2=State Text Width 50
Input file "ADO_Example_TextFile_Schema.txt":
Paris Arkansas Paris Idaho Paris Illinois Paris Iowa Paris Kentucky Paris Maine Paris Michigan Paris Mississippi Paris Missouri Paris NewYork Paris Ohio Paris Pennsylvania Paris Tennessee Paris Texas Paris Virginia Paris Wisconsin ViennaAlabama ViennaGeorgia ViennaIllinois ViennaLouisiana ViennaMaine ViennaMaryland ViennaMissouri ViennaNew Jersey ViennaNew York ViennaNorth Carolina ViennaOhio ViennaSouth Dakota ViennaTexas ViennaWashington D.C. ViennaVirginia ViennaWest Virginia