undefined reference to sqlcxt
This error message is typically encountered when developing programs that use the Oracle Database and the Oracle Call Interface (OCI) library. It indicates that the linker is unable to find a reference to a symbol named "sqlcxt."

The "sqlcxt" symbol is typically a variable or function that is defined in the OCI library, and it is used to manage the context of a SQL statement. The error message indicates that the linker cannot find a definition for this symbol in the libraries that are being linked to the program.

This error can be caused by a few different things:
  1. The OCI library is not being linked to the program: Make sure that the correct library files are being included in the linker command.
  2. The OCI library is not installed on the system: you may need to install the OCI library on your system in order to use it.
  3. The OCI library version is not compatible with the version of the Oracle Database you are using: Make sure that you are using the correct version of the OCI library for the version of the Oracle Database that you are using.
  4. Incorrect library path: Make sure that the linker is looking in the correct location for the OCI library.
To fix this error, you may need to check the linker flags, ensure that the OCI library is installed and accessible, and ensure that the OCI library version is compatible with the version of the Oracle Database that you are using.