May 2012
Intermediate to advanced
440 pages
9h 1m
English
Content preview from Oracle Advanced PL/SQL Developer Professional GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Creating LOB data types
Similar to other data types, table columns which are meant for the storage of large data must be declared as one of the LOB data types. This section focuses on the elementary step of LOB handling that is, creation of LOB columns.
Directories
Directory is a vital component in Oracle used to access an operating system file. It interfaces the location path as a directory object. The DBA creates it and grants read/write privileges to the concerned user.
A directory is a nonschema object and can be used as a security barrier for the files located on the server or the client. A directory can be created as per the following syntax:
CREATE DIRECTORY [DIRECTORY NAME] AS [OS LOCATION PATH]
Note that the directory creation does not validate ...
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