Database Administrator

Use adrci in Oracle 11g to view alert logs 1. Know adrci This command can view error messages and logs, which are provided to us along with the change of the 11g trace directory location. This tool can not only edit logs like vi. You can also view

8 database management tools suitable for Linux users! From the content management system to simple tables, databases are part of every development project. This is why developers emphasize the use of the correct type of database tools. The following

Configure the sid_name case for the static listener to cause logon failure. Remote logon fails due to the Case sensitivity of SID_NAME during static listening configuration. For Oracle databases, the same name is case-insensitive, indicating

ORACLE zookeeper query, ORACLE zookeeper ORACLE supports regular query operations by using the CTE internal audit method, and also has its own unique query method. In ORACLE, this method is called continuous data query. This example illustrates the

The Relay Log cannot be automatically deleted (Neither, relayneither Check the mysql err log today and find that the following logs will always appear during mysql restart: [Warning] Neither -- relay-log nor -- relay-log-index were used; so

PostgreSQL ERROR: invalid escape string solution, postgresqlescape After configuring PostgreSQL as a Hive metadatabase, a colleague encountered the following error when running Hive SQL: Copy codeThe Code is as follows:Caused by: MetaException

SQL plus rescue data (test), sqlplusIndexed-- Execute plsql scriptDECLARETYPE RowIDTab istable of rowid indexby BINARY_INTEGER; CURSORc1 IS select/* + index (xifenfei ind_xifenfei) */rowidFromchf. xifenfeiWhereobject_id isNOT NULL; R RowIDTab;Rows

Set the maximum number of mysql connections in CentOS to 1040 too persistent connection and centosmysql.When the maximum number of connections is small, the error "1040 too connection" may occur.You can modify the configuration file to modify the

[Translated from mos] The asm background process in 11gR2, 11gr2asmAsm background process in 11gR2Reference Original:ASM Background Processes in 11.2 (Doc ID 1641678.1)Applicable:Oracle Database-Enterprise Edition-Version 11.2.0.2 to 11.2.0.4

Develop independently and intelligently Recently, I checked the statements that run on the database for a long time and found that the developers on our side are really amazing, and the skills they do not understand are really high. The

How can I obtain the connection string from sqlserver and mysql? How to obtain connection strings from sqlserver and mysql Steps: The file type is changed to. udl. 2. open the file and find the corresponding service in data provision. 3. Select the

Solr In Action Chinese Version chapter 1 (ii), solraction What is Solr? In this section, we design a search application from scratch to introduce the key components of Solr. This process will help you understand Solr functions and the original

The current detailed error message is no longer displayed. Only the corresponding figure is displayed. Refer to the data in an EYGLE article:1. Fault symptom The database version is 11 GB. The error is similar to the following: ORA-00600: Internal

16.Evaluate the following query: SQL> SELECT promo_name q'{'s start date was }' promo_begin_date AS "Promotion Launches"FROM promotions;What wocould be the outcome of the above query? A.It produces an error because

7. Which two statements are true regarding the USING and ON clses in table joins? (Choose two .) A. Both USING and ON clses can be used for equijoins and nonequijoins. B. A maximum of one pair of columns can be joined between two tables using the ON

The problem was reported on the site recently. All electronic seal pages cannot be opened (in pdf format), and no errors were reported in background logs. The effect was blank: 1. First of all, I thought of the ocx control issue of the seal. I

Before learning about JDBC, we can review ODBC to better understand JDBC. The two relationships are not common. They implement the same function and provide support for application connection and database operations. Therefore, we should start with

Cluster Health Monitor (CHM) is a tool provided by Oracle to automatically collect operating system resources (such as CPU, memory, SWAP, process, I/O, and network). CHM collects data every second, and 11.2.0.3 collects data every 5 seconds. These

Problem: "System. Data. SqlClient. SqlException" type unprocessed exceptions occur in System. Data. dll. Other information: truncates string or binary data. This is a problem encountered when setting the basic data of the data room charging system.

Oracle 11g introduces scan ip. However, in the absence of DNS, the client connection to RAC is still using oracle 10 Gb. Configure failover in tnsname. ora of the client.ORCL =(DESCRIPTION =(ADDRESS_LIST =(LOAD_BALANCE = yes)(ADDRESS = (PROTOCOL =