MSDNBlogsFS/prod.evol.blogs.msdn.com/CommunityServer.Blogs.Components.WeblogFiles/00/00/00/42/11/metablogapi/7345.2_thumb_147AB72C.png' alt='Free Odbc Driver For Salesforce Secure Log' title='Free Odbc Driver For Salesforce Secure Log' />ODBC FAQ Oracle FAQOracle ODBC connectivity FAQ.What is ODBC and where does it come fromeditODBC Open Database Connectivity provides a way for client programs eg Visual Basic, Excel, Access, QE etc to access a wide range of databases or data sources.ODBC is a standardized API, developed according to the specifications of the SQL Access Group, that allows one to connect to SQL databases.It defines a set of function calls, error codes and data types that can be used to develop database independent applications.ODBC is usually used when database independence or simultaneous access to different data sources is required.What is the difference between ODBC and Net.ODBC is an industry standard way to connect to SQL databases like Oracle, SQL Server and DB2.Net. 8 or SQLNet is an Oracle proprietary standard connection protocol that only works with Oracle databases.Free Odbc Driver For Salesforce Secure CustomerThe fact that it is proprietary usually means that it is slightly faster, better integrated with Oracle and more feature rich.Most ODBC to Oracle implementations require the ODBC software stack to run on top of the Oracle Net.Are there alternative products that can be usededitYes, look at Oracle Objects for OLE, JDBC and Net. 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What do I need to get ODBC to workeditYou typically need the following.A workstation with TCPIP connectivity An Oracle ODBC driver Oracles SQLet or Instant Client software.How can I install and configure ODBC drivereditGo to Using ODBC driver chapter in this ODBC driver configuration guide and follow the steps described there.What is ODBC and where does it come from ODBC Open Database Connectivity provides a way for client programs eg Visual Basic, Excel, Access, QE etc to access a.ODBC primer everything you need to know about ODBC on 64bit Linux, UNIX and Windows platforms.Easysoft ODBC, JDBC and XML drivers let you access Oracle, SQL Server, Salesforce.Access, InterBase, DB2, Derby, Sybase, Firebird, RMS, ISAM, Coda and Linc from.WebFOCUS 8 Technical Library Contact Us Contact Us WebFOCUS Release 8.Versions 10 and 09 New Features and Release Notes WebFOCUS Release Guide.Where can one get ODBC drivers for Oracle and RdbeditOracles ODBC drivers can be downloaded free of charge from Oracle Technet.If you are still using Oracle V6, you can use the ODBC driver that comes with Microsoft Access 1.Since ODBC is a standard, there are alternative drivers available via other vendors.The following vendors provide ODBC drivers that can run from Windows and Unix.Note If you plan to use a 1.ODBC even if it is running on Windows.Windows NT, you will need to use a 1.Windows 3. 1 ODBC driver.Do I need SQLet to connect to Oracle via ODBCeditFor Oracles ODBC drivers, YES.Some multi tier ODBC drivers eg.Openlink and Visionware do not require SQLet on the client as one has to install an ODBC server component on the server.The ODBC drivers then use the underlying network protocol eg.TCPIP without using SQLet.How do I create a Data SourceeditA data source is a logical name for a data repository or database.To define a data source, open the ODBC manager by double clicking on the ODBC icon in the Control Panel.Select the add button, then select the ODBC Driver for the database you want to connect to.The data source definition screen will appear.Free Odbc Driver For Salesforce Secure L' title='Free Odbc Driver For Salesforce Secure L' />Define the data source name and other information as it pertains to your configuration.What ODBC Conformance Level is supported by OracleeditODBC provides 4 conformance levels depending upon how much of the ODBC specification is implemented in the driver.The levels are. CORE API LEVEL 1 LEVEL 2 LEVEL 3 latest spec.The Oracle. 7 ODBC driver supports ODBC Version 2.Level 2 only. Oracle does not support Level 3 ODBC, but Level 1 is all that is necessary to do standard operations.If you develop applications that will run on different databases, you might want to limit yourself to level 1 ODBC calls.Free Odbc Driver For Salesforce Secure SignShould I give ODBC to my end userseditIt all depends.I would not allow end users to access an OLTP On line Transaction Processing system via ODBC.Rather, setup a Data Warehouse or Data Mart and let users enter their queries from hell against that database.How secure is ODBCeditAny ODBC sniffer will be able to trace everything from an ODBC perspective.This includes data, usernames, passwords etc.However, if you are using an ODBC driver that provides encryption, you can increase your level of security.Since any front end tool can effectively connect to and modify your databases, you need to enforce security at the server level.On the other hand, if you use TCPIP, ODBC security should be the least of your concernsHow fast is ODBCeditAccording to Oracle, their ODBC driver, on average, runs about 3 slower than native Oracle access.My experience, however, is that ODBC can be extremely slowMuch of the query tools supply more options than plain SQL.This you should avoid.When you create queries that fit within regular SQL the query is processed on the server and only the result is transported over the network.This is very fast.But you have to always be aware of the kind of SQL that is made by your front end tool.Note ODBC is a programming interface, not an implementation.Performance depends on the implementation of the interface.There are several types of ODBC drivers for Oracle.Heres a white paper with benchmarks comparing OCI and ODBC performance http www.How can I test if ODBC is setup correctlyeditExecute the ODBCTST.EXE program that comes with your ODBC driver to ensure that all your connections are properly configured and that you can connect to your data source.How can I trace ODBC callseditThe Microsoft ODBC Administrator My Computer Control Panel ODBC provides a simple ODBC call trace that logs ODBC calls to a file.To use this facility, click the Options button on the initial Data Sources form.Check the box labeled Trace ODBC Calls and change the default log filename SQL.LOG if desired. The underlying ODBC calls the front end application makes to communicate with the ODBC Driver will be logged to this file.Specialized ODBC trace programs, such as Microsofts ODBC Spy included in the ODBC SDK 2.ODBC Inspector and ODBC Agent can be used to capture detailed ODBC call information and the return code for each call.How do I tell which driver version I have installededitRun the ODBC administrator from the desktop ODBCADM.EXE or ODBCAD3. 2.EXE. Click the Drivers button Choose the desired ODBC driver Click the About button.Version information will be displayed for the selected driver.What is SQLPASSTHROUGHeditUse the ODBC SQLPASSTHROUGH option when you need to pass your SQL statement to the ODBC data source directly.No massaging or local processing is done on the statement, it is passed to the database server AS IS.This improves performance, but the resulting dynaset is not updatable.Example. db. Execute.SQLBEGIN procedurenameparam.END, SQLPASSTHROUGH.How does one attach an Oracle table in MS AccesseditCreate a linked table under the table tab in Access.Right click select link table.A dialog box opens, at the bottom, change the files of type box to ODBC Databases.This will open the Data Source dialog box.Select your data source, file or machine note the type you created earlier.You will now be prompted to login to the Oracle database.One can also link a table programmatically.Open a new MODULE in Access, add this code to it and RUN F5.Option Compare Database.Option Explicit. Function Attach.Table As Variant.On Error Go. To Attach.TableErr. Dim db As Database.Dim tdef As Table.Def. Dim str. Connect As String.Set db Current. Db.Connect ODBC DSNoraweb DBQqit uq cbiworaweb DATABASE.NOTE DSN is your ODBC Data Source Name DBQ is your TNSNAMES.ORA entry name. Set tdef db.Create. Table. DefMYACCESSTABLENAME.Attributes DBATTACHEDODBC.Connect str. Connect.Source. Table. Name MYORACLETABLENAME.Table. Defs. Append tdef.Attach. TableExit.Exit Function. Attach.TableErr. Msg. Box Error StrErr Error occured in global module.Resume Attach. TableExit.How does one get Oracle data into MS ExceleditThere are several ways to extract data from Oracle and load it into Microsoft Excel.Here are some. SQLlus.The easiest method is to spool the data from sqlplus to a CSV formatted file and open it in MS Excel.Here is an example.COL1, COL2, COL3.The resulting spool file data.Windows machine and opened in Excel.OO4. OOracle Objects for OLE OO4.O can be used to load data into Excel.For more details, see the OO4.O FAQ. 3rd Party Tools.SQLL Lite a freeware plug in used to run SQL statements directly from Excel.SQLL formerly Oraxcel requires OO4.O to be installed on your PC.Fastreader from wisdomforce.Flex. Tracer 3rd party ODBC tracer.IRI FACT Fast Extract from IRI, The Co.Sort Company, which uses OCI and parallelism to produce CSV files.
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