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SQL programmingYou can use the HCL OneDB™ implementation of the SQL language to develop applications for HCL OneDB™ database servers.
Guide to SQL: ReferenceThe HCL OneDB™ Guide to SQL: Reference contains the reference information for the system catalog tables, data types, and environment variables of the HCL OneDB™ dialect of the SQL language, as implemented in HCL OneDB™. These topics also include information about the stores_demo, sales_demo, and superstore_demo databases that are included with HCL OneDB™.
Environment variablesVarious environment variables affect the functionality of your HCL OneDB™ products. You can set environment variables that identify your terminal, specify the location of your software and define other parameters.
Environment variables in HCL OneDB™ productsThe topics that follow discuss (in alphabetic order) environment variables that HCL OneDB™ database server products and their utilities use.
DBBLOBBUF environment variableUse the DBBLOBBUF environment variable to control whether TEXT or BYTE values are stored temporarily in memory or in a file while being processed by the UNLOAD statement. DBBLOBBUF affects only the UNLOAD statement.

DBBLOBBUF environment variable

Use the DBBLOBBUF environment variable to control whether TEXT or BYTE values are stored temporarily in memory or in a file while being processed by the UNLOAD statement. DBBLOBBUF affects only the UNLOAD statement.

size: represents the maximum size of TEXT or BYTE data in KB.

If the TEXT or BYTE data size is smaller than the default of 10 KB (or the setting of DBBLOBBUF), the TEXT or BYTE value is temporarily stored in memory. If the data size is larger than the default or the DBBLOBBUF setting, the data value is written to a temporary file. For instance, to set a buffer size of 15 KB, set DBBLOBBUF as in the following example:

setenv DBBLOBBUF 15

Here any TEXT or BYTE value smaller than 15 KB is stored temporarily in memory. Values larger than 15 KB are stored temporarily in a file.