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Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
Creating extensionsYou can create user-defined data types, routines, access methods, and other database objects to suit your needs. You can use application programming interfaces to write user-defined routines and applications that access data in HCL OneDB™ databases.
DataBlade® API Function ReferenceThe HCL OneDB™ DataBlade® API Function Reference describes the DataBlade® API functions and the subset of functions that the DataBlade® API supports.
Function descriptionsThis section gives comprehensive reference information about the functions that are valid within DataBlade® API modules. It lists the function descriptions in alphabetical order, with syntax, usage information, and return values for the functions.
The rstol() functionThe rstol() function converts a null-terminated string into a long integer value.

The rstol() function

The rstol() function converts a null-terminated string into a long integer value.

Syntax

mint rstol(string, long_int)
   char *string;
   mlong *long_int;

string: A pointer to the null-terminated string to convert.
long_int: A pointer to an mlong variable to contain the converted value.

Usage

The legal range of values is -2,147,483,647 - 2,147,483,647. The value -2,147,483,648 is not valid because this value is a reserved value that indicates null.

Return values

=0: The conversion was successful.
!=0: The conversion failed.