oracle data guard 12c

Oracle uses shell to test historical data samples Shell has been used to analyze some data for some time, and the data analysis is based on historical data. Today, I wrote a script to perform a simple analysis of historical data,

Oracle data comparison (DBMS_COMPARISON) A data comparison package (DBMS_COMPARISON), but this package is less than used. So let's talk about the use of this Toolkit today. For friends who often finish data migration, after data migration, the most important and important qu

Data synchronization between Oracle GoldenGate databases on Heterogeneous OS Oracle GoldenGate (hereinafter referred to as OGG) synchronizes data between databases of the same type on Heterogeneous OS. Functions implemented by ogg:It can be refined to single-Table synchronization, rows synchronization that meets specif

' Secure_register_listener_name = ' I n Stand alone database installations. 1) restricting registration to the TCP protocol (Requires The fix for bug:12880299) -or- 2 restricting Registra tion to the IPC protocol (the patch for bug:12880299 are not required for the "IPC method") either method accomplishes th E same goal but it is your choice which type to implement subject to the restriction* noted. Both methods would be discussed. the second method (using IPC) cannot was used if the database

GoldenGate synchronizes Oracle Data to GreenPlum Source endOracle 11.2.0.4 RAC 2-NodesOracle Linux 5.8 x86_64Oracle GoldenGate V11.1.1.0.0 for Oracle 11g on Linux x86-64.zip Oracle GoldenGate V11.1.1.0.0 For FlatFile on Linux 64-bit for OGG v11.1.1.0.0.zip Target endGreenplum Database 4.2.6.1 4-NodesCentOS 5.7 x86_64

#if your database isn’t in archivelog mode,you must specify ALTER DATAFILE ... OFFLINE FOR DROP when taking a data file offline.When you use the OFFLINE FOR DROP clause, no checkpiont is taken on the data file, this means you need to perform media recovery on the data file before bringing it online.3 SQL> recovery datafile 4; 13. renaming or relocating a

time of undo data? Method: Use the retention grarantee clause to ensure that the database is retained according to the undo_retention time; 2.1 start-up guarantee retained Alter database UNDOTBS01 RETENTION GUARANTEE 2.2 disable guarantee of Information Revocation Alter database UNDOTBS01 RETENTION NOGUARANTEE 3. disadvantages of enabling RETENTION GRARANTEE When this parameter is enabled, when the business is busy, when the undo tablespace usage is

mgr Parameters-- Mgr. prmPORT 7809DYNAMICPORTLIST 7840-7914STARTUPVALIDATIONDELAY 5PURGEOLDEXTRACTS d: \ ogg \ dirdat \ *, USECHECKPOINTS, MINKEEPDAYS 7LAGREPORTHOURS 1LAGINFOMINUTES 30LAGCRITICALMINUTES 45 Create a replication process parameter rep1.prm-- Rep1.prmReplicat rep1Sourcedefs D: \ ogg \ dirdef \ defgen. prmUserid ggs, password ggsReperror default, discardDiscardfile D: \ ogg \ dirrpt \ rep1.dsc, append, megabytes 50DynamicresolutionMap test. test1, target test. test1; Add a replic

Data replication between Oracle databases-the COPY command in SQLPlus can replicate data between different Oracle databases and replicate data in the same database, its performance is the same as that of import/export. Schematic diagram: According to 9i, the Copy command wil

) backup-based tablespace migration (4) dataguard 1.2.1 transportable tablespace Transporttabletablespace can be implemented using expdp/impdp, or RMAN. Note that the tablespace needs to be set to read only for transmission of tablespaces, but it is generally not allowed by the production database, therefore, the backup-based RMAN table space can be used here. One of the biggest advantages of table space migration based on backup is zero downtime, and supports heterogeneous platforms and cross

);V_saledate date;V_productId number (10 );V_num varchar (40 );BeginSelect sale_record_seq.nextval into: new. id from dual;V_ID: =: new. id;V_storeId: =: new. storeId;V_saledate: =: new. saledate;V_productId: =: new. productId;V_num: =: new. num;Insert into sale_record @ mall (id, storeId, saledate, productId, num) values (v_ID, v_storeId, v_saledate, v_productId, v_num );End addSaleRecords; Test: Add data to the local table: Insert into sale_record

Tags: Oracle move datafileTo rename a data file or move a data file before Oracle12.1, you need to close the database or set the tablespace/data file to the offline state before referencing the Oracle modified data file name/Mobil

Perform regular data statistics through the Oracle JOB package Environment: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 Stored Procedure: MyProc JOB Compilation: SQL> declare2 jobx number;3 begin4 sys. dbms_job.submit (job => jobx,5 what => 'myproc ;',6 next_date => trunc (sysdate + 1) + 750/1440, // run at every day7 interval => 'trunc (sysdate + 1

set conversion occurs, This type can also be affected;20, BFILE:This data type can store an Oracle directory object and a file name in the database column, which we can use to read the file;21, rowID :rowID is actually the address of a row in a database table, which is 10 bytes long. The information encoded in the ROWID is not only sufficient to locate each row on the disk, but also to identify the object

dual;V_ID: =: new. id;V_storeId: =: new. storeId;V_saledate: =: new. saledate;V_productId: =: new. productId;V_num: =: new. num;Insert into sale_record @ mall (id, storeId, saledate, productId, num) values (v_ID, v_storeId, v_saledate, v_productId, v_num );End addSaleRecords; Test: Add data to the local table: Insert into sale_record (id, storeId, saledate, productId, num) values (sale_record_seq.nextval, 10000001, '2017-12-12 12:12:12 ', 2013, 11 );

The most important task for a database administrator is to ensure that the database does not lose data. The redo and revoke mechanisms ensure that the database will never have a commit error no matter what operations the DBA has performed. However, if DBA does not take any preventive measures, the Oracle database may still lose data. Therefore, we must configure

In DataGuard, the data protection mode should be set as needed In all configurations, performance is used for data security, or the data security level is used for performance. 1. Data protection modeFirst: Maximize Data ProtectionMaximum availability: This protection mode p

DBA's goal is to reduce MTTR (the average recovery time is the downtime after the database fails. The solution is practice, practice, and practice! Continuous simulation experiments) and Data DBA's goal is to reduce MTTR (the average recovery time is the downtime after the database fails. The solution is practice, practice, and practice! Continuous simulation experiments) and Data The most important ta

Data Guard offers two main services: 1 Redo Transport Service: The Primay end of the redo log transmission to one or more standby destinations. 2 Redo Application Service: The redo log which is transmitted from the Primay end is applied to the standby end. This article first discusses the redo transport services. 1, the use of ARCN transmission redo log By default, the ARCN transport redo log, but only

:@10.19.100.19:1521/aegisdb src_db_user=aegisdbsrc_db_password=123456 target_db_url=jdbc :p Ostgresql://localhost:5432/aegistarget_db_user=postgrestarget_db_password= 123456The configuration file uses JDBC to configure the connection string for the target library (PG) and Source Library (Oracle), where Oracle is a PDB for 12c, so the service name cannot be used