This chapter begins to describe the Oracle OCI relational functions for C. It includes information about calling OCI functions in your application, along with detailed descriptions of each function call.
See Also:For code examples, see the demonstration programs included with your Oracle installation. For additional information, refer to Appendix B, "OCI Demonstration Programs".
This chapter contains these topics:
This chapter describes the OCI relational function calls. This chapter and the next, cover the functions in the basic OCI.
See Also:For information about return codes and error handling, refer to the section "Error Handling in OCI"
More detailed information about the function (if available). This may include restrictions on the use of the function, or other information that might be useful when using the function in an application.
This optional section describes the possible values that can be returned. It can be found either before or after the Comments section.
A complete or partial code example demonstrating the use of the function call being described. Not all function descriptions include an example.
Unlike earlier versions of the OCI, in and after release 8, you cannot pass -1 for the string length parameter of a
NULL-terminated string.When you pass string lengths as parameters, do not include the
NULL terminator byte in the length. The OCI does not expect strings to be
amount parameters in some LOB calls are in characters,
when UTF-16 encoding of text is used in function parameters, the length is in character points.
For a table showing the number of server round trips required for individual OCI LOB functions, refer to Appendix C, "OCI Function Server Round Trips".