Oracle Database transfer from server A to server B

Oracle Database transfer from server A to server B Sometimes we encounter such a situation where the existing database needs to be transferred from one machine to another. Generally, we use export and import. However, if the database contains a

MySQL batch processing SQL statement

MySQL batch processing SQL statement MySQL supports batch processing to execute a batch of SQL statements. The following example shows how MySQL executes SQL statements in windows batch processing. Create table test (id int, name varchar (20

Configure the Oracle database environment using Python

Configure the Oracle database environment using Python 1. download and install the cx_Oracle installation package To operate the Oracle database using Python, you must first install the cx_Oracle package as

Blocking blocked in RAC Environment)

Blocking blocked in RAC Environment) The blocking in the RAC environment is different from that in a single instance, because we need to consider the session in different instances. That is to say, the corresponding strain of the previously queried

How to obtain the variable value bound to an Oracle SQL statement

How to obtain the variable value bound to an Oracle SQL statement When diagnosing SQL Performance problems, we sometimes need to obtain the actual value of the variable it binds, and then bring the actual value into the SQL statement, use the

SPFILE causes Oracle Database startup failure

SPFILE causes Oracle Database startup failure After the server is powered off and restarted, it is reported that Oracle Database Service cannot be started, on the server to use as sysdba login to connect to a null instance, use startup times 'ora-24

Online expansion of database UNDO tablespace

Online expansion of database UNDO tablespace Expand the database UNDO tablespace online and log on to the Oracle database server with an Oracle account Method 1: View the tablespace name and file location: Select tablespace_name, file_id, file_name,

Oracle uses with as and hint materialize to optimize SQL to solve low FILTER efficiency

Oracle uses with as and hint materialize to optimize SQL to solve low FILTER efficiency During project creation, a page uses SQL statements similar to the following to query data, I replaced the table name and field in the project with the system

Common Oracle system queries

Common Oracle system queries 1. query all objects in the system Select owner, OBJECT_NAME, OBJECT_TYPE, CREATED, LAST_DDL_TIME, TIMESTAMP, STATUS FROM DBA_OBJECTS where owner = UPPER ('Scott ') 2. view all tables in the system Select owner,

Adjusting the size of Oracle sga causes ORA-00851 and ORA-00844 errors

Adjusting the size of Oracle sga causes ORA-00851 and ORA-00844 errors Today, I adjusted the size of Oracle sga. the following error is returned when I restart the database.SQL> alter system set sga_max_size = 1024 M scope = spfile;SQL> shutdown

Role of TNS in Oracle, role of OracleTNS

Role of TNS in Oracle, role of OracleTNS What is TNS? TNS is a part of Oracle Net. It is a tool used to manage and configure the connection between the Oracle database and the client. In most cases, to communicate with the database, TNS must be

[Translated from mos] the user account in oracle db is locked-view the attempts made by oracle users, mosoracle

[Translated from mos] the user account in oracle db is locked-view the attempts made by oracle users, mosoracle Reference Original: Users Accounts Getting Locked. (docid 791037.1)   In fact, this article is written for other oracle software

BIEE connects to SQLServer business data source (Linux environment), bieesqlserver

BIEE connects to SQLServer business data source (Linux environment), bieesqlserverBy default, the mssqlserver data driver is installed on biee11g. You do not need to reinstall the server. The configuration process is mainly based on ODBC. This

ORA-19527 and ORA-00312 error resolution examples for 10g DG, ora-19527ora-00312

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The restoration after the MySQL database is deleted.

The restoration after the MySQL database is deleted. In the morning, I accidentally deleted a database I just created yesterday! Fortunately, the log feature is enabled in mysql. The following describes how to restore a deleted database: First, save

The root User Name in ubuntu cannot enter mysql, how to view the user name and password, how to modify the root password, and tumysql

The root User Name in ubuntu cannot enter mysql, how to view the user name and password, how to modify the root password, and tumysqlMysql-u root-p Press enter. after entering the password, the system prompts "access denied... ues password YES/NO"

How to Use JDBC to start Oracle auto trace, jdbcoracle

How to Use JDBC to start Oracle auto trace, jdbcoracleSometimes we need to track and analyze the specific execution process of SQL statements, especially when the application performance is optimized. Two Oracle tools can help us analyze performance.

Access denied for user: & #39; root @ localhost & #39; (Using password: YES ),

Access denied for user: 'root @ localhost' (Using password: YES ), After mysql is successfully installed in centos First use of root logon: Access denied for user: 'root @ localhost' (Using password: YES) The reason is that the root password in

Oracle GoldenGate (hereinafter referred to as ogg) synchronizes data between databases of the same type on Heterogeneous OS ., Goldengateogg

Oracle GoldenGate (hereinafter referred to as ogg) synchronizes data between databases of the same type on Heterogeneous OS ., Goldengateogg Oracle GoldenGate (hereinafter referred to as ogg) synchronizes data between databases of the same type on

Common Oracle modification statements and oracle modification statements

Common Oracle modification statements and oracle modification statementsI. Table Test Table: MY_TEST_TABLE -- Create tablecreate table MY_TEST_TABLE( A VARCHAR2(30), B NUMBER(10) default 1, C DATE)tablespace BOSSWG_CFG pctfree 10 initrans 1

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