sun transit time

The sun, the central celestial body of the solar system, is the source of light and heat of the planet. It is an ordinary star in the Milky Way. It is located about 10 thousand seconds from the silver heart, about 8 seconds north of the silver road

Conclusion: -- two single-instance databases are used for DG. The database version is 10.2.0.1.01. The master database is configured as archasync, And the slave database does not have STANDBYLOG. The log contains: RFS [4]:

I sent an email today, but failed to send it. Then I went to the server to check the log and found that the hard disk was filled with the cache queue and logs of spam, Tail-F/var/log/maillog found the screen was flushed. Some logs are as

When you delete one or more data files in the master database or delete one or more tablespaces, you also need to delete the relevant data files in the slave database. The example provided in the following section is as follows: When you delete one

8.3.2 Dropping Tablespaces and Deleting Datafiles8.3.2 Delete Tablespaces and data files When you delete one or more datafiles or drop one or more tablespaces in the primary database, you also need to delete the corresponding datafiles to the

The relative positions of the stars change very little, so that the stars form almost constant patterns on the celestial sphere. In order to express the position of the star on the celestial sphere, a coordinate system is used. Since the coordinates

Dataguard can provide redundancy of Oracle database, data protection, fault recovery and so on, realize fast handover and disaster recovery of database. When the production database is guaranteed transactional consistency, a standby database is

Compared with Coptic calendars, Persian calendars cannot be classified as "Lost calendars". The former originated from ancient times, but also from ancient Egyptian calendars; the Persian calendar is only pushed forward to the relatively closer 1079

Absrtact: This paper describes how to implement idea symmetric encryption algorithm in the Java environment. Because of the popularization of e-commerce and e-government, security encryption technology is widely used in it, and the requirement of

Summary Sometimes Apache is everywhere, and everyone is running Apache, and even the dogs including Apache are running their own Apache. But even so, there are still many other types of Web servers to choose from. This article provides a