Oracle

After a new Oracle 11g RAC is installed, do you know what caused the CRSD on the second node to fail to start? The error message is Crs-4535:cannot communicate with Cluster Ready Services. Its specific error message also needs to see the Crsd.log

Oracle 11g Dataguard Snapshot standby database functionality, which places the standby in open read/write state and simulates the test in the main library of the production environment. When the standby snapshot standby task completes, you can

Second, the OMF management of the log file Log file management parameters: Db_create_online_log_dest_n Db_create_online_log_dest_n:oracle the default path when you create an online log file and a control file without explicitly specifying a path -

As a complex Oracle database system, the SQL statements submitted by different users are processed every moment, obtaining the data and returning the data to the user. As already mentioned, parsing an SQL statement is done in a shared pool in an

Oracle has three kinds of table connectivity technologies, namely, nested joins, merge joins, and Hash joins. 1. Nested loop joins (NESTED Loop join) A nested connection divides the data set to be processed into an outer loop (a driving data

1. Reasonable sorting of query conditions Oracle uses a bottom-up sequence to parse where writes, and from an optimized performance perspective, it is recommended that the conditions that filter out a large number of record rows be written at the

1. Three modes of protection –maximum Protection Under maximum protection, you can ensure that the data from the library and the main library is exactly the same, and that the zero data loss. The transaction is completed at the same time on both

First install the Oracle 10g CD-ROM into the CD-ROM drive, and if it runs automatically, it will typically appear as shown in Figure 1 installation Interface: Figure 1 By clicking Start installation, you can install Oracle 10g, typically checking

Add users (automatically generate a schema with the same name as the user creates) CREATE USER "TESTER" profile "default" identified by "TESTER" default Tablespace "TESTDATA temporary tablespace" testtemp "Account UNLOCK; Empowering (to be honest,

addition Select Sysdate,add_months (sysdate,12) from dual; --plus 1 years Select Sysdate,add_months (sysdate,1) from dual; --Add January Select Sysdate,to_char (sysdate+7, ' Yyyy-mm-dd HH24:MI:SS ') from dual; --plus 1 weeks Select Sysdate,to_char (

My colleague received a task yesterday to process the contents of the Oracle database in PHP, but the PHP open Oracle extension is not as straightforward as MySQL, and requires a little something to open it. The first step is to have the official

Recently, the company leader told the next product, may involve Oracle database, formerly used most is MSSQL, some time ago learned MySQL is also a little used. Oracle has not been contacted. Should have done for me before. NET development, so data

' TEST ' is a reserved word for Oracle, so be aware of it when used in some places, and I now find that Oracle treats it as a reserved word when backing up in Rman. Test is really a reserved word in rman ... To back up other tablespaces, simply

2. Cross-partitioned access is still a good performance for partitioned tables, because the data is concentrated in 2 partitions or more than the access T1 to access data less ... Sql> SELECT * from t1 where object_id 504448 rows have been

Part I: Profile concept Oracle database 10g uses a new approach called SQL configuration files to compensate for the drawbacks of storage profiles, DBAs can use SQL Tuning Advisor (STA) or SQL Access Advisor (SAA) to identify SQL statements that

Authorization for Oracle Objects Oracle Licensing I. Authorization syntax Grant Syntax: 1. Explicit authorization (authorization of objects directly to the user) GRANT privilege [, ...]  On object [, ...] to {public| Group | Username|role}

1, FGA strategy (fine-grained audit) DBMS_FGA is a package for the SYS user (1) Increase FGA strategy --Audit form GRANT Resource,connect to bank identified by bank; CREATE TABLE BANK. ACCOUNTS （ Acct_no number PRIMARY KEY, cust_id number

Oracle's Exp/imp are two tools that many users often use. They are often used to do database logical backup, database reorganization and data transfer, and so on. The data is unloaded from exp to the file system first, resulting in one. DMP files,

--Create synonymsCreate public synonym employees for hr.employees; --Common synonymsCreate public synonym permissions RequiredAll users of the table are granted public permissionsGrant Select on employees to public;Create synonym t1_s for T1;

1. All nodes as RootRPM-IVH oracleasmlib-2.0.4-1.el6.x86_64.rpmRpm-qa *asm*kmod-oracleasm-2.0.8-13.0.1.el6_8.x86_64oracleasm-support-2.1.8-1.el6.x86_ 64oracleasmlib-2.0.4-1.el6.x86_64Rpm-qa cvu*Cvuqdisk-1.0.9-1.x86_642. After loading the required