Hitachi

Hitachi Advanced Database Setup and Operation Guide


5.9 Estimating the size of the work table DB area

Use the following formula to determine the size of the work table DB area.

Formula (kilobytes)
work table DB area size = WRK_PAGE_NUM × page_size ÷ 1,024

Explanation of variables

WRK_PAGE_NUM: Total number of pages in the work table DB area

Determine the value as explained in 5.9.1 Determining the total number of pages in the work table DB area.

page_size: Page size in the work table DB area

Substitute the value specified for the initialization option adb_init_wrk_page_size determined in 5.7 Designing a work table DB area.

Note that the adb_init_wrk_page_size option is specified in kilobytes, while the page_size variable is specified in bytes.

For details about the initialization option adb_init_wrk_page_size, see adbinit (Initialize the Database) in the manual HADB Command Reference.

Organization of this section