Two-phase commit protocol is comprised of a set of actions that ensure a transaction involving multiple databases does not produce unsynchronized updates. Two-phase commit provides a way for a series of database interactions on multiple different data sources to be grouped together and completed or rolled back as a single transaction. Two-phase commit transactions that…
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This topic contains RANGE-PARTITIONED TABLES that is available since Oracle 8i. 1. RANGE-PARTITIONED TABLES The PARTITION BY RANGE clause of the CREATE TABLE statement specifies that the table or index is to be range-partitioned. The PARTITION clauses identify the individual partition ranges, and the optional sub clauses of a PARTITION clause can specify physical and…
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The PARTITION BY HASH clause of the CREATE TABLE statement identifies that the table is to be hash- partitioned. The PARTITIONS clause can then be used to specify the number of partitions to create, and optionally, the tablespaces to store them in. Alternatively, you can use PARTITION clauses to name the individual partitions and their…
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In recent weeks Oracle has released VM 3.4.3 The principal enhancements present in this release are: Installation and Upgrades: – Simplified UEFI PXE Boot for Oracle VM Server Infrastructure: – Support for Software RAID Devices with Oracle VM Server – Support for Microsoft Windows Server Failover Clustering – Update to Oracle VM Agent for SPARC…
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How to call scenario odi from apex application. Instead to open the client to execute the run of the scenario there is possibility to call odi scenario just using a button created into your application front-end apex. Objects to create – Job type PLSQL_BLOCK – Apex button to enable the job indicated Here the source…
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In recent weeks Oracle has released VM 3.4.3 The principal enhancements present in this release are: – Installation and Upgrades: – Simplified UEFI PXE Boot for Oracle VM Server – Infrastructure: – Support for Software RAID Devices with Oracle VM Server – Support for Microsoft Windows Server Failover Clustering – Update to Oracle VM Agent…
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Partitioning enables you to decompose very large tables and indexes into smaller and more manageable pieces called partitions. Each partition is an independent object with its own name and optionally its own storage. Now in 11g, Oracle introduced new partition type called INTERVAL PARTITIONING The INTERVAL clause of the CREATE TABLE statement establishes interval partitioning…
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In the previous release there was no way to control the amount of memory used by an individual PDB. It could use up lots of memory and impact the performance of other PDBs in the same instance. Oracle Database 12c Rel.2 (12.2) allows to control the amount of memory used by a PDB. PDB Memory…
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Oracle introduced the long awaited Database 12c Release 2 earlier this year at OracleOpen World. Oracle just released Oracle Database 12c Release 2 for on-premises Linux and Solaris. Find below an incomplete list of the main new features: 1. Multi-Instance Redo Apply : With Oracle 12c Release 2, you can apply redo logs to multiple instance at…
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Oracle Dataguard Far Sync instance is a new feature introduced in Oracle Database 12c, which simply works like a archive/redo repeater.. Far sync instance is something different than the Oracle Database instance, as its mission is accepting redo from the primary database and then shipping that redo to other members of the Oracle Data Guard…
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