ESQL Data Type Compatibilities
When writing an ESQL application, there are several data type compatibility issues among Progress, SQL, static and Dynamic ESQL, and C. This appendix describes these data type correspondences and how they apply to an ESQL application.
Progress static and Dynamic ESQL offer different degrees of flexibility to exchange data between SQL table columns and C variables of different data types. Using static ESQL, you must declare C variables using a specific range of data types that match the Progress data type of the corresponding table column. Using Dynamic ESQL, Progress performs automatic data conversion between a much broader range of C and Progress data types.
This appendix describes:
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