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How to configure the statspack performance report of Oracle11gADG How to configure the STATSPACK performance report of Oracle 11g ADG Create a normal STATSPACK report user on the master database Sqlplus/as sysdba SQL> @? /Rdbms/admin/spcreate.

DAL refers to DataAccessLayer. DALFactory is a factory used to create data access objects. Essentially, it adopts the abstract factory design mode to support multiple data access layers, for example, sqlserver and oracle.. net reflection mechanism.

More and more problems have been found recently. Both in self-learning and software problems have made me feel that there are still many problems that need our efforts, in the near future, we can better solve the problem. So let me first talk about

Prerequisite: archive is enabled. The Archive directory is not specified by default. The log_archive_dest parameter cannot be specified when the client sets a flashback zone and log_archive_dest for the database without stopping the database for DG .

We often have such a rule in the database: 1 indicates male and 0 indicates female. However, you cannot display 0 or 1 on the page. You must convert the gender numbers in the set to male and female before the display. Three methods are used for the

N1 is the most common performance problem in database access. First, we will introduce what is N1: for example, there are two tables in our database, one is MERs, one is Orders. Orders contains a foreign key mermer_id pointing to the Customers

There are three methods for upgrading the 11g Database: DBUA, MANUAL, EXPDPIMPDP + UPDATE. We are familiar with the first two methods. For the third method, the official document says: UnlikeDBUAoramanualupgrade,

Int, bigint, smallint, and tinyint use the exact numeric data type of integer data. Bigint integer data from-2 ^ 63 (-9223372036854775808) to 2 ^ 63-1 (9223372036854775807) (All numbers ). The storage size is 8 bytes. Int from-2 ^ 31 (-2,147,483,648)

-- Obtain the physical data address selectt. rowidrid, t. Random; -- obtain the maximum number of pages selectrownumrn, ridfrom (selectt. rowidrid, t. lastdatefromt_testtorderbyt.lastdatedesc) whererownum1 -- Select t. rowid rid, t. lastdate from

Today, I checked the materials and found that the relationship between log_archive_dest_n and standby_archive_dest is a bit vague. I will do a simple test to clarify the relationship and deepen my memory. First, let's take a look at our experiment

Continue with GoldenGate configuration (4) Tutorial Data configuration URL: click the link to open the tutorial data experiment example (1) Verify the synchronization environment between TCUSTMER and TCUSTORD: Workshop Follow up the golden Data

Regular inspection of database alertlog information is an important means of routine database maintenance, inspection, and troubleshooting. Database System ldquo; run rdquo with illness ;, Regular inspection of Database alert log information is an

In the past few days, I had a headache when I looked at JAVA basics. I decided to change my taste from time to time and start to investigate some popular technologies. So I began to think about the blind zone of my knowledge (at that time, there are

For the asm background process in 11gR2, see the original article: ASMBackgroundProcessesin11.2 (DocID1641678.1) for: OracleDatabase For the asm Background process in 11gR2, see the original article: ASM Background Processes in 11.2 (Doc ID 1641678.1

For the solution to the failure of automatic job execution, see the original article: Jobsdonotexecuteautomatically (DocID309945.1) applicable to: OracleServer For more information about how to solve the problem of automatic job execution, see the

1. Why do we need to enable the Connection when using jdbc? once it is used up, it is immediately closed. What will happen if my Connection is opened at the beginning and closed at the end of the entire program? 2. Why use the connection pool? When

Rman connection: connect to the local database: 1. First, specify ORACLE_SID; -- if the database has only one instance, you do not need to specify it. rman is connected to a unique instance by default; setORACLE_SIDORCL2, and then

Nomorlization 1NF: atomicity. Each field cannot be separated. 2NF: uniqueness, that is, each table describes only one entity. This entity must have a primary key. non-primary keywords must be fully dependent on the primary key because they are

Failure in synchronization between update nodes of GoldenGate: node 1 and node 2 cannot be synchronized after update operations: 1. Regular inspection: Check Process status: normal GGSCI (gc1)

ASM (AutomaticStorageManagement) is a software storage solution officially recommended by Oracle. Since the official launch of the 10G version, ASM has become an important role in the software architecture. ASM (Automatic Storage Management) is a