You cannot post a blank message. Please enter your message and try again. Hi I am new to the forum, I have 4 years Informatica experience and recently switched companies. I haven't experienced this issue before so any help would be greatly appreciated. Where do I install the drivers? As mentioned any help would be appreciated Many thanks Jan. This content has been marked as final. Show 7 replies. Regards, Nico. Hi Nico, Thank you very much for the reply and I very much appreciate your help.
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Bash, ! Featured on Meta. New responsive Activity page. Related 1. Options Help Chat with a consultant. Include archived documents. This content has been archived , and is no longer maintained by Indiana University. Information here may no longer be accurate, and links may no longer be available or reliable. Oracle 11g Release 2 is not compatible with Windows Windows 10 users should download the Oracle Scroll down to "Oracle Database Client If you have an Oracle Home environment variable set on your computer, remove it before starting the installation it interferes with setting some paths for the installation.
You may want to investigate SQL Developer as an alternative. Reducing Lock Timeout for more information on specifying a value in the oraodbc. For Windows platforms, when you link your program, you must link it with the import library odbc However, the rowid value must be presented in a parameter marker. Oracle reference cursors Result Sets allow an application to retrieve data using stored procedures and stored functions.
The ODBC syntax for calling stored procedures must be used. The following identifies how to call the procedure or function without a package and within a package. The package name in this case is RSET. For example, assume procedure Example2 is defined to have four parameters. Parameters 1 and 3 are reference cursor parameters and parameters 2 and 4 are character strings. The call is specified as:. Migrated procedures are often reorganized and created in schemas in one of these ways:.
All procedures defined in one SQL Server database are migrated to the schema named with that database name. To support these three ways of organizing migrated procedures, you can specify one of these schema name options for translating procedure names.
Object names in the translated Oracle procedure call are not case-sensitive. The symbols for the new attributes are defined in the file sqora. This attribute is necessary for the ODBC application to determine which connection the failure event is taking place on.
Null is returned if the attribute has not been set. The failure events map directly to the events defined in the OCI programming interface. The list of possible events is:. Use this option when you migrate any third party ODBC application to Oracle Database and you want to use implicit results functionality as supported by the previous vendor. Oracle Database Globalization Support Guide for information about Datetime data types and time zone support.
Oracle Database Globalization Support Guide for more information about setting the session time zone. Environment Setup.
For example:. Error Messages for advanced users. Implements ODBC support for implicit results. Unicode Functions in the Driver Manager. Data loss is possible when the Driver Manager is converting from Unicode to the local code page. An ODBC application developer need not explicitly call entry points with the suffix.
String arguments are converted from Unicode to the local code page. The text of the SQL statement parameter is converted from Unicode to the local code page. Convert return parameters that are character data from the local code page to Unicode. In this case, the Oracle ODBC Driver uses the knowledge it has about the data type of the column as defined in the database to determine how to best default to fetching the column through OCI.
The driver could default to receiving the column as Unicode, however, this may result in as many as two unnecessary conversions.
The default encoding of the Oracle client is used when fetching data. Example 1: Connection to Database. Example 2: Simple Retrieval. Example 4: Simple Update. The following example retrieves the employee names and the job titles from the EMP table. This example shows how to update data.
This example may be the most complicated case to update and retrieve data for long data, like CLOB , in Oracle. This section describes some general programming tips to improve the performance of an ODBC application. Enable connection pooling if the application will frequently connect and disconnect from a data source. Reusing pooled connections is extremely efficient compared to reestablishing a connection.
Minimize the number of times a statement must be prepared. Where possible, use bind parameters to make a statement reusable for different parameter values. Preparing a statement once and executing it several times is much more efficient than preparing the statement for every SQLExecute. This topic discusses performance implications of the following ODBC data source configuration options:.
Enable Result Sets. Enable Closing Cursors. Enable Thread Safety. Fetch Buffer Size. This option enables the support of returning result sets for example, RefCursor from procedure calls. The default is enabling the returning of result sets. The ODBC Driver must query the database server to determine the set of parameters for a procedure and their data types to determine if there are any RefCursor parameters.
This query incurs an additional network round trip the first time any procedure is prepared and executed. Enable LOBs. The application can reopen the cursor by executing the statement again without doing a SQLPrepare again.
A typical scenario for this is an application that is idle for a while but reuses the same SQL statement. While the application is idle, it might free up associated server resources. The cursor and associated resources remain open on the database server. Enabling this option causes the associated cursor to be closed on the database server. However, this results in the parse context of the SQL statement being lost.
Enabling this option severely impacts performance of applications that prepare a statement once and execute it repeatedly. If an application is single-threaded, this option can be disabled.
By default, the ODBC Driver ensures that access to all internal structures environment, connection, statement are thread-safe. Single-threaded applications can eliminate some of the thread safety overhead by disabling this option. Disabling this option typically shows a minor performance improvement. This value determines how many rows of data at a time the ODBC Driver prefetches from an Oracle database to the client's cache, regardless of the number of rows the application program requests in a single query, thus improving performance.
Setting this too high can worsen response time or consume large amounts of memory. The default is 64, bytes. Choose a value that works best for your application. To prevent incorrect results as might happen if the parameter value had nonzero fractional seconds , the optimizer applies the conversion to the HIREDATE column resulting in the following statement:.
Unfortunately, this has the effect of disabling the use of the index on the HIREDATE column and instead the server performs a sequential scan of the table.
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