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Client APIs and toolsYou can use the HCL OneDB™ implementation of client APIs to develop applications for HCL OneDB™ database servers.
ESQL/C GuideThe HCL OneDB™ ESQL/C Programmer's Manual explains how to use , the HCL OneDB™ implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities.
What is HCL OneDB™ ESQL/C?
HCL OneDB™ ESQL/C programming
Declaring and using host variables
Declare a host variableYou must define the data storage that a host variable needs before you can use that variable in programs. To assign an identifier to the variable and associate it with a data type, you declare the variable.
Initial host-variable valuesYou can declare host variables with normal C initializer expressions by using .

Initial host-variable values

You can declare host variables with normal C initializer expressions by using .

The following example shows valid C initializers:

EXEC SQL BEGIN DECLARE SECTION;
   int varname = 12;
   long cust_nos[8] = {0,0,0,0,0,0,0,9999};
   char descr[100] = "Steel eyelets; Nylon cording.";
EXEC SQL END DECLARE SECTION;

The preprocessor does not check initializer expressions for valid C syntax; it copies them to the C source file. The C compiler diagnoses any errors.