Oracle Built−in Packages- P63 potx
Oracle Built−in Packages- P3 potx
... 1. Introduction Contents: The Power of Built−in Packages Built−in Packages Covered in This Book Using Built−in Packages Examining Built−in Package Source Code Ah, for the good old ... 7 of the Oracle Server) and then, most recently, PL /SQL Version 8.0 (to accompany Oracle8 ). In each major version and its sub−releases (2.1, 2.2, 2.3, and, sometime in 1998, 8.1), Oracle has ... −...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P13 potx
... point Oracle sets aside memory for a cursor data area and then returns a pointer to that area. These pointers are different from the cursors defined by other elements of Oracle, such as the Oracle ... be terminated with a semicolon unless it is a PL/SQL block. language_flag A flag determing how Oracle will handle the statement. Valid options are DBMS_SQL.V6, DBMS_SQL.V7, and DBMS_SQL.N...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P37 potx
... many users, so the general usefulness of unpack_to_tbl and pack_from_tbl will have to wait until Oracle fixes these PL/SQL memory management problems. NOTE: The problem caused by unpacking messages ... with more than a few items in them can result in a very large PL/SQL table that has been fixed in Oracle PL/SQL8. 3.1.7.3.2 The peek procedure Developers or DBAs working with and testing DB...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P45 potx
... a lockhandle or an integer lock identifier. The test yielded the following results on a Personal Oracle7 database with no other activity: SQL> @l2 Using lockhandles: 9.57 secs Using lockids: ... together a number of best practices for using the DBMS_LOCK package. 4.1.3.1 Named locks or lock ids? Oracle provides two methods of identifying and manipulating user locks: integer lock identif...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P52 potx
... have been using Oracle AQ in Oracle 8.0.3 and are now upgrading to 8.0.4, check the online Oracle documentation for upgrade steps you must take. 5.2.3 Authorizing Accounts to Use Oracle AQ When ... on the Companion Disk? 5.2.2 Database Initialization 248 Chapter 5 Oracle Advanced Queuing 5.3 Oracle AQ Nonprogram Elements Oracle AQ defines a number of data structures, exceptions,...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P57 potx
... to request that the message be retained forever. dependency_tracking Reserved for future use by Oracle Corporation. FALSE is the default, and TRUE is not permitted. comment User comment to associate
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P62 potx
... you reconnnect to Oracle. aqstk2.spp A stack whose contents persist between connections to the Oracle database. 5.7.4 Browsing a Queue's Contents One very handy feature of Oracle AQ is the ... was not able to confirm by the time of this book's printing whether this was necessary in Oracle 8.0.4. With this second implementation of a stack, I no longer need or want to destroy...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P63 potx
... navigation for the dequeue operation to the first message in the queue. I do this to make sure that Oracle AQ starts from the beginning of the queue to search for a match. If I do not take this step, ... session: ORA−25237: navigation option used out of sequence This behavior may be related to bugs in the Oracle 8.0.3 release, but the inclusion of the navigation field setting definitely t...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P81 potx
... LOB concepts you'll need to understand when you work with large objects. 8.2.1 LOB Datatypes Oracle8 provides four LOB datatypes: BFILE Large binary objects stored in operating system files
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P82 potx
... a program in the DBMS_LOB package. 8.2.3.4 NULL versus "empty" LOB locators Oracle8 provides the built−in functions EMPTY_BLOB and EMPTY_CLOB to set BLOB, CLOB, and NCLOB columns to ... privilege, as in: GRANT READ ON DIRECTORY IMAGES TO SCOTT; 8.2.2.2 Populating a BFILE locator The Oracle8 built−in function BFILENAME can be used to populate a BFILE locator. BFILENAME is passe...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P111 potx
... pragma. To learn more about Oracle trace events and their usage in diagnosing and debugging serious database problems, see the Oracle Backup & Recovery Handbook, by Rama Velpuri (Oracle Press, 1995). 11.2.2.3 ... invoked by end users or called by PL/SQL programs. Its usage is limited to Oracle internal purposes or under instruction of Oracle Technical Support. Improper use of the...
Ngày tải lên: 07/07/2014, 00:20
Oracle Built−in Packages- P119 potx
... package exceptions. The interval date expression must evaluate to a future date or the following Oracle exception will be raised: ORA−23420 Interval must evaluate to a time in the future. 13.2.5.1.2 ... packages, etc.) are not in place at the time of submission. TIP: On some platforms and versions of Oracle, a COMMIT is required for the job to be picked up by the job queue for execution. I...
Ngày tải lên: 07/07/2014, 00:20