A keyword that specifies the name of the host language in which the program is written. This program calls the procedures in the module. Specify GENERAL for languages that do not have a corresponding keyword in the LANGUAGE clause. The language identifier determines: o The kinds of data types that the SQL module processor considers valid in the module's formal parameter declarations. If a language does not support a data type equivalent to some SQL data type, the SQL module processor generates a warning message when it encounters the data type in a formal parameter. (A formal parameter is the name in an SQL module procedure declaration that represents the corresponding actual parameter in a host language call to the SQL module procedure.) For example, SQL supports the BIGINT data type, but PL/I does not. The module processor generates a warning message when it encounters a BIGINT formal parameter in an SQL module that specifies the PL/I language in the LANGUAGE section. o The default mechanism for passing parameters to and from a host language source file. Parameters are always passed by the default passing mechanism for the language specified in the language clause. The following table shows those defaults. Table 3 Default Passing Mechanism for Host Languages to SQL Modules Language Passing Mechanism Ada By reference BASIC CHAR by descriptor; all others by reference C By reference COBOL By reference FORTRAN CHAR, SQLCA, SQLDA by descriptor; all others by reference Pascal By reference PL/I By reference GENERAL By reference o The default data type that SQL expects for certain actual parameters. In COBOL, for example, if a DOUBLE PRECISION formal parameter is declared in an SQL module procedure, the procedure expects the parameter to be passed from the calling module as D_FLOAT rather than G_FLOAT because COBOL does not support G_FLOAT. Similarly, in C, if a CHAR(n) formal parameter is declared in an SQL module procedure, the procedure expects the parameter to be passed from the calling module as an ASCIZ string with a length of (n+1).