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Polyhedra 8.3: Some SQL enhancements and streaming output from historian. Polyhedra 8.4: performance enhancements; 2011 Polyhedra 8.5: better integration with 3rd-party tools, and improved performance on Windows. Replica servers can be used in a fan-out configuration for better scaling. 2012 Polyhedra 8.6: 64-bit integer data type.
Views take very little space to store; the database contains only the definition of a view, not a copy of all the data that it presents. Views structure data in a way that classes of users find natural and intuitive. [2] Just as a function (in programming) can provide abstraction, so can a database view. In another parallel with functions ...
Rdb is built on top of a low-level database kernel named KODA, which handles functionality such as locking, journaling, and buffering of data. [12] The KODA kernel is shared with Oracle's CODASYL DBMS (originally known as VAX DBMS) which is a network model database.
TINYINT (8-bit), SMALLINT (16-bit), INTEGER (32-bit), BIGINT (64-bit) REAL (32-bit), DOUBLE (aka FLOAT) (64-bit) N/A CHAR, VARCHAR, NVARCHAR: N/A DATE, DATETIME (aka TIMESTAMP) BOOL: N/A Type system Integer Floating point Decimal String Binary Date/Time Boolean Other Teradata: Static BYTEINT (8-bit), SMALLINT (16-bit), INTEGER (32-bit), BIGINT ...
Yes - user manager with support for database and schema permissions as well as for individual object (table, view, functions) permissions; Some - simple user manager with support for database and schema permissions; No - no user manager, or read-only user manager
In relational databases, the log trigger or history trigger is a mechanism for automatic recording of information about changes inserting or/and updating or/and deleting rows in a database table. It is a particular technique for change data capturing , and in data warehousing for dealing with slowly changing dimensions .
Starting with this release the version number of Oracle Forms moving forward would keep in sync with the Oracle database version. As a result, version 8 as skipped, and the version number jumped to 9. After this release, there were very few product changes made besides keeping the version number in sync with the Oracle database.
Triggers are fully supported and can be attached to tables. Triggers can be per-column and conditional, in that UPDATE triggers can target specific columns of a table, and triggers can be told to execute under a set of conditions as specified in the trigger's WHERE clause. Triggers can be attached to views by using the INSTEAD OF condition ...