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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 rdatestr() functionThe rdatestr() function converts an internal DATE value to a character string.

The rdatestr() function

The rdatestr() function converts an internal DATE value to a character string.

Syntax

mint rdatestr(jdate, outbuf)
   int4 jdate;
   char *outbuf;

jdate: The internal representation of the date to format.
outbuf: A pointer to the buffer to contain the string for the jdate value.

Usage

For the default locale, U.S. English, the rdatestr() function determines how to interpret the format of the character string with the following precedence:

The format that the DBDATE environment variable specifies (if DBDATE is set)
For more information, see the HCL OneDB™ Guide to SQL: Reference.
The format that the GL_DATE environment variable specifies (if GL_DATE is set)
For more information, see the HCL OneDB GLS User's Guide.
The default date form: mm/dd/yyyy

When you use a nondefault locale and do not set the DBDATE or GL_DATE environment variable, rdatestr() uses the date end-user format that the client locale defines. For more information, see the HCL OneDB GLS User's Guide.

Return values

0: The conversion was successful.
<0: The conversion failed.
-1210: The internal date cannot be converted to the character string format.
1212: Data conversion format must contain a month, day, or year component. DBDATE specifies the data conversion format.