Overview
The ESQL-LIB interface provides the functions required to execute SQL statements from an ESQL application. This includes functions that you must call directly, as well as functions that the SQL Preprocessor calls to support the ESQL statements that you code (EXEC SQL...;).
The reference entries for these functions describe variables and data structures that your ESQL module must declare. The following sections briefly describe the data objects required to call ESQL-LIB functions. When you use the SQL Preprocessor, it declares and initializes most of the data objects that ESQL-LIB requires when it converts your Progress/ESQL statements into function calls. If you make direct calls to ESQL-LIB, you must manage all required variables, data structures, and literal values.
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