Programming languages and environments for DL/I
You can write your programs in COBOL, C, PL/I, or assembler. The examples of DL/I requests in this section are in COBOL.
You have a choice of two interfaces: the command level interface (EXEC DLI) and the call level interface (using DL/I CALLs). For guidance about comparing the two interfaces, see Application programming design in IMS product documentation. For programming information about the functions of EXEC DLI commands and DL/I CALLs, see Application programming for EXEC DLI in IMS product documentation and DL/I calls reference in IMS product documentation, respectively.