teradata vs oracle

Tags: Oracle goldengate initial Load methodNon-Oracle DB is illustrated with SQL Server as an example:My train of thoughtA:oracle DB production B:oracle DB Intermediate machine C:sqlserver db destinationa-> b->c Note: B on both the rep process and ext process, at this time, C also need to establish a rep process for B.A->b can complete the online initialization synchronization (EXPDP based on the SCN number

ORACLE-012: Automatic varchar2 and number conversion for numbers only in oracle, oracle-012varchar2 When an association query is used, the fields in the two tables define different types. One field is of the varchar2 type, and the other is of the number type. The content is as follows: '20160301' and 00187. In use, the varchar2 type is automatically converted to

There are several modes of locking in Oracle:0:none1:null Empty2:row-s line Sharing (RS): Shared table locks, Sub share3:row-x Line Exclusive (RX): For row modifications, sub Exclusive4:share shared Lock (S): Prevents other DML operations, Share5:s/row-x shared Row Exclusive (SRX): Block other transaction operations, Share/sub exclusive6:exclusive Exclusive (X): Independent access use, exclusive The types provided by 1.

export or after the import recompile. The stored procedure did not import successfully, so I finally took advantage of Navicat to import the stored procedure successfully.Note: (1) To ensure that two databases have the same character set, if the difference will be an error. I checked the next two database character sets are the same, so I'm not sure what is wrong with the specific report. To view the database character set:SELECT * from V$nls_parameters WHERE PARAMETER in (' Nls_characterset ',

[Oracle entry series] Chapter 2 _ Oracle entry-v512 workshop Editor: Xuan Yu Install Oracle Oracle service Send me an email Uninstall Oracle Oracle terminology V512 Studio Basic

About Oracle ASM instances About Oracle ASM disk groups About grouping and failure groups About Oracle ASM Disks About Oracle ASM files About Oracle ASM instances The Oracle ASM instance is built based on the same technology a

Oracle learning notes first knowledge Oracle, oracle learning notes first KnowledgeDatabase Introduction A Database is a warehouse that organizes, stores, and manages data according to the data structure. SQL is the acronym of Structured Query Language (Structured Query Language.Definition 　　DatabaseTo put it simply, it can be regarded as an electronic file cabin

the software.Ellison said: "we transfer the queue from the database server to the Queue Server, where the queue is processed in parallel ." Some of these queues run on each kernel of the two storage servers. This database server is configured with 14 storage servers (28 multi-core CPUs ). Currently, a quad-core CPU can provide up to 112 available kernels for parallel queue processing. A complex queue is divided into 112 cores. If necessary, each core has its own kernel.Each database server and

Oracle client + PLSQL Developer remote login to Oracle database, oracle client plsql Oracle databases have powerful functions and excellent performance. These advantages also result in a large amount of memory occupied by Oracle. To address this problem, how can we extract t

When Oracle is not installed on the computer, C # Calls oracle database and Oracle customer tools, The installation packages of Oracle are usually relatively large and time-consuming. If errors occur during the installation process, the installation may be quite annoying. At work,