Oracle

You should still have the impression that we have demonstrated the creation of a table-level replication environment in the second section of the first section, comparing the whole library/table space level or schema level replication, and now

Specific error Java.sql.SQLRecoverableException:Io exception: The network Adapter could not establish the connectionAt Oracle.jdbc.driver.SQLStateMapping.newSQLException (sqlstatemapping.java:101)At Oracle.jdbc.driver.DatabaseError.newSQLException (

oracle| Performance | optimization | statement 1. Choose the appropriate Oracle OptimizerOracle's optimizer total of 3 kinds A, rule (rule-based) B, cost (based on costs) C, CHOOSE (optional) set the default optimizer to pass various declarations of

The company developed software, customers can not upload large attachments, the page does not report any errors. View the JBoss log, also see no errors, the software itself to eliminate the fault. When you view the Oracle database log, you receive

Under RHEL7, when you install Oracle database, you have the ability to select XFS files, such as the following:Requirements for installing Oracle Database 12.1on RHEL7 or OL7 64-bit (x86-64) (document ID 1961997.1)Requirements for installing Oracle 1

The control file is the most important file in Sql*loader, which is a text file that defines the location of the data file, the format of the data, and the behavior of the configuration data loading process, in which the control file is specified in

Oracle 12C joins a very innovative feature, pluggable database, that enables database (PDB) pull-out capabilities on the "container" (CDB) to improve system resource utilization and simplify the management and migration of large-area databases.now

Inadvertently seen on the internet, I see is reproduced by others, the author is unknown.First, openness1. SQL Serveronly running on Windows , without the slightest openness, the stability of the operating system is very important to the database.

Learn how to use a single Oracle Form's Alert object for Warning/information messages and confirmation messages such as Aski ng for delete confirmation etc. This task can is done using the Set_alert_button_property command. Suppose you has created

Count1) with Count (*) Comparison: If your data table does not have a primary key, COUNT (1) than COUNT (*Fast If there is a primary key, then the primary key (the Federated primary key) as the count condition is also more than count (*) to be quick

When updating data in Oracle, one was thrown: ORA-01008 Not all variables bound,My understanding is not that all variables/parameters have boundaries and do not understand:Later, it turns out that "not all variables/parameters are OK",Is that some

Global companies can operate their subsidiaries through NetSuite's cloud ERP, while maintaining headquarters-to-Oracle input, NetSuite provides SuiteCloud connectivity for NetSuite's cloud ERP integration with Oracle, a global company.650)

3. Installing the grid3.1. Install RPM PackageTwo nodes are to be installed, take node 1 as an example [Email protected] yum.repos.d]# yum install compat-libstdc++-33 ksh gcc gcc-c++ libgomp elfutils-libelf-devel glibc-

1. Hugepage Basic ConceptsA system process accesses memory through a virtual address, but the CPU must convert it to a physical memory address to actually access the memory.To improve the efficiency of this conversion, the CPU caches the closest

Oracle learning Data Warehouse (I) Import Oracle 11g Global samples schemaOracle 11g provides an example schema for the Data Warehouse. You can download the sample installation file through the following link. The

Oracle tuning uses related SQL, oracle tuning related SQL Select * from v $ session where username is not null;Select username, count (username) from v $ session where username is not null group by username;Select count (*) from v $ process;Select

Record the restoration of the ORACLE 12C CDB database when the current redo is lost. ORACLE 12C redo exception recovery test-some pdb are not open normallyIn order to verify the restoration of the ORACLE 12C CDB database when redo is lost, a small

Db replay setting scale_up_multiplier does not take effectSet scale_up_multiplier:BEGINDBMS_WORKLOAD_REPLAY.PREPARE_REPLAY (scale_up_multiplier => 10 );END;However, after setting, check DBA_WORKLOAD_REPLAYS.SCALE_UP_MULTIPLIER and find that this

1. During RMAN backup, the physical bad blocks are checked by default.2. To check the logical bad blocks, use the following statement:$ Rman target/RMAN> backup check logical validate database;Note that the preceding statements are only checked and

Here is a simple record of the two Oracle RAC databases of a customer who worked overtime for the National Day. During the recovery process, the two rac databases were similar, therefore, we will take the restoration process of a set of databases as