Ingres 9.2 Migration Guide - Actian

User-Visible DBA EnhancementsAutomated Creation of Location DirectoriesBefore Version 2.6, the Ingres DBA had to manually create the directories foralternate locations as prescribed in the Database Administrator Guide. Thisstep had to be performed prior to creating a Location with accessdb, or couldbe deferred if Locations were created using EXEC SQL CREATE LOCATIONsyntax. To circumvent directory permissions problems, accessdb had to be runby the Ingres user whenever Locations were created, altered, or extended.This process is clarified and simplified in Ingres 2.6 with the following changes:• The Ingres server performs all manipulations of Location directories. Thisresolves the permissions problems of earlier releases and allows anyaccessdb user with the “maintain_locations” privilege to create, alter, orextend Locations.• The server automatically creates Location directories when aCREATE/ALTER LOCATION statement is executed, whether by accessdb oruser-invoked SQL. Because only missing directories are created, the DBAretains the ability to manually create as much, or all, of the Location pathas wanted before creating the Location.Using the example from the section Create an Area in UNIX in the DatabaseAdministrator Guide, the following directories will be verified or createdautomatically during the execution of:CREATE LOCATION new_loc WITH AREA='/otherplace/new_area', USAGE=(DATABASE)PermsDirectory/otherplace755 /otherplace/new_area755 /otherplace/new_area/ingres700 /otherplace/new_area/ingres/data777 /otherplace/new_area/ingres/data/defaultNotes:• Permissions are not changed for extant directories.• The top-level directory “/otherplace” must exist and will not be created bythe server.• Raw location directories (UNIX only) cannot be automatically created andmust be made with the MKRAWAREA utility, which must be run by “root.”The Locations may be created prior to MKRAWAREA but a warning will beissued noting that the utility must be run prior to their use.Features Introduced in Ingres 2.6 197