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- !!! Simple ADO Example !!!
- !ADO Object Model
- 1255 OLE Member Not Found
- ADO - ADOX requirements
- ADO - DAO Constants
- ADO AD Sort Problem
- ADO and GetObject
- ADO and Large Numbers
- ADO Convert Access data to Tab Delimited Text File
- ADO CreateParameter
- ADO Data Control Constants
- ADO Data Shaping
- ADO Error Issue
- ADO Error Object
- ADO Find vs DAO Seek Access Example
- ADO Jet Order By Clause
- ADO links
- ADO Sample for Stored Procedure
- ADO SaveAs and Excel or Convert Before Closing
- ADO Schemas
- ADO softseek
- ADO SQLOLEDB Example
- ADO Stream Binary File Download
- ADO Stream to Binary Buffer
- ADO with mySQL
- ADOX Append Table Columns
- ADOX Grant Permissions
- ado_seek
- Auto Form For ADO Database Tables
- Auto Generate GUIDs
- Basic Database Dialog Sample
- Beginner ADO Question
- Check Who is Using an MDB
- Close an Active Connection
- Connect to SQL Server 2000 MSDE
- Converting Text String to 4-char Soundex String
- Create Address Book XML File
- Create ADO Get and Put UDFs for Selected Database Table
- Create an AutoIncrement Column in Access
- csv2acc - ADO - CSV-delimited to MDB conversion
- csv2acc2 - ADO - CSV-delimited to MDB conversion2
- DAO CreateTableDef
- Delete All Records from Access Table
- Error 1261 using SetInfo Method
- Extract Column Data Using ADO
- Generic Recordset to Text file UDF
- Get Create_date From SQL Server Table Properties
- Get Extended ADO Connection-Version Info
- Get Result Data of Select Statement
- Get Users Email Address in Active Directory
- GetRows Array Results Explained
- How to Filter Records
- Import Data into My SQL
- Insert Rows From One Database to Another
- Inserting Rows that Contain Apostrophe
- Large Database Query Example
- Learning ADO Conversion to Winbatch
- Lock Database in ADO
- Long Discussion on ADO and Creating a Table
- Microsoft Access Database Engine 2010 Redistributable
- MySQL UDFs
- OLE and DAO Example
- OLE DB Data Link Properties Dialog
- Ole Exception ADODB Recordset
- OLE Exception Connecting to Oracle ODBC Driver
- Ole Exception ParentCatalog ADOX
- Parent-Child Fabricated Recordsets
- Playing around with ADO Schemas
- Problem Getting Record Count via ADO
- Retrieve all user objects in a domain via ADO
- Return a Value from an ADO array
- Samples for creating ADO connections
- Simulate Alter Structure for Persisted XML Recordset
- SQL Server 2005 XML with Winbatch
- SQL Server Blank Password
- SQL Server Update Using ADO
- SQLOLEDB Provider Error
- Stored Procedure with Return Value
- Streaming Recordset To Browser
- Tip - Avoid Duplicate Errors in Bulk INSERTS
- Use ADO to Insert Data From CSV Into Excel
- Use the Datalinks Dialog to insert ADO Connection info into a script
- Very Basic Database - Dialog ADO Sample
- Visual ADO Connection
- Wildcard for SQL LIKE Using ADO
- Write BLOB to MySQL
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Large Database Query Example
The attached script builds a .csv file in 'chunks'. It uses filewrite() and IntControl 53 to not leave a 'blank' line after each chunk. I used this technique on 6-7 million row DB2 queries to get Long-Distance Call Detail Records.
;Winbatch 2006C - write rows to csv file in chunks
; useful for large queries (millions of rows)
;
;Stan Littlefield June 21, 2006
;//////////////////////////////////////////////////////////////////
;substitute your own datasource and provider
cMDB=StrCat(DirScript(),"wmi.mdb")
If ! FileExist(cMDB) Then Exit
cOut=StrCat(DirScript(),"wmi.csv")
If FileExist(cOut) Then FileDelete(cOut)
cConn = "Provider=MicroSoft.Jet.OLEDB.4.0; Data Source=%cMDB%"
oRS = CreateObject("ADODB.Recordset")
oRS.CursorLocation=3
;adjustable number of records per page
nRecs = 40
oRS.CacheSize = nRecs
;basic forward-only cursor, substitute for your datasource
oRS.Open("SELECT * FROM Classes",cConn,0,1,1)
;hopefully your provider supports this
rCount = oRS.RecordCount
nPos=1
oRS.MoveFirst()
h=FileOpen(cOut,"WRITE")
IntControl(53,0,0,0,0)
While (nPos<=rCount) && !oRS.eof
FileWrite( h,oRS.GetString(2,nRecs,",",@CRLF,"") )
nPos=nPos+nRecs
EndWhile
:End
oRS.Close()
FileClose(h)
oRS=0
Exit
;/////////////////////////////////////////////////////////////
Article ID: W17113
File Created: 2007:07:03:14:28:20
Last Updated: 2007:07:03:14:28:20