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DG builds RMAN Duplicate environment for 1.DG: IP DB_NAME DB_UNIQUE_NAME ORACLE_SID DB PORT main library: 192.168.1.69 hsidb hsidbp
RAC two nodes, one of which suddenly appears log file sync waiting, and is a fixed number of replies. The reply does not end, so delete it manually: select 'alter system kill session''|
In the process of mysql query, data can be filtered, sorted and grouped. Examples of sorted data and grouped data are described below. 1. Use ORDER BY select * from to sort the data.
Encountered an error while exporting a friend's database, as follows: click (here) to collapse or open [root@iZ252affh68Z ~] # innobackupex-- defaults-file=/etc/my.cnf--
The tablespace operation on PDB in CDB using RMAN replication is as follows. Check the parameter file, data file, online log file, control file, archive log file storage directory of the source RAC CDB (jy) SQL > show parameter spfil
Percona MySQL 5.6Primary replication environment error: mysql > show slave status\ Gateway * 1. Row *
AWR cannot automatically generate snapshot solution description: after the RAC archive is full, AWR cannot automatically generate a snapshot. The principle should be caused by MMON HANG, so the problem was solved after trying to restart MMON. ; MMON HANG solution 1) restart mm
The following error was found when connecting to MySQL remotely: java.sql.SQLException: null, message from server: "Host '192.168.30.23' is not allo
CLion 2019 for Mac is a cross-platform IDE intelligent code editor designed for the development of C and C++. The CLion Mac version is designed on the basis of IntelliJ and contains many intelligent features to improve developer productivity. This kind of power
Settings for binlog in my.cnf binlog_format = row binlog format must be row mode binlog_row_image = full must be full default is fu
Configure system information to prepare for the installation of Greenplum 1.Greenplum Cluster introduction here uses a master,3 segment cluster, the ip is 192.168.6.119 master192.168.6.120
Partition clipping using explain partitions can show whether partition clipping has been carried out. MySQL > drop table t2persQuery OK, 0 rows affected (2.90 sec) mysql
Experimental environment operating system: CentOS 7.1database: Oracle 11.2.0.4 directory example 1: recovery based on SCN or point in time-restore mistakenly deleted at a certain time in the past example 2: the current log group is damaged, resulting in a database crash example 3: archive log
1. Uuid () function mysql > select uuid (), uuid (); +
In a recent article about deleting columns from a table, I left an open question. What should / might you do after deleting columns? Because deleting columns is just a special case of "mass deletions". In this article, I plan to lay the foundation for how we think about "mass deletions" and the consequences.
[problem description] which scenarios are suitable for lzw and snappy compression respectively? [solution] the snappy compression algorithm is to compress a single record, and the repeated reading of the data inside the record directly affects the compression ratio. Therefore, when the internal data of the record is highly repeated, such as every
When my colleague generated a performance report on the rac cluster, he found that one instance of the rac cluster did not generate an awr snapshot, and the other instance snapshot was normal. The following are the specific processing steps. Instance 1 did not generate awr snapshot SQL > select SNAP_ID,END_INTERV
The use of http://blog.csdn.net/leshami/article/details/6530890DBVERIFY tools Or is caused by hardware failure or operating system failure during the operation of Oracle database
Author: Henan-Lao Song (Zhiqiang) link: https://zhuanlan.zhihu.com/p/26224566 Source: Zhihu copyright belongs to the author. Commercial reprint please contact the author for authorization, non-commercial reprint please indicate the source. Phenomenon: mysql
This article is transferred from the Internet. This series of articles will be sorted out in my "Java interview Guide" warehouse on GitHub. For more wonderful content, please go to my warehouse to check out https://github.com/h3pl/Java-Tutorial if you like.
What are the differences between the storage engines commonly used in MySQL?
This article is to share with you about how common storage engines in MySQL differ from each other. The editor thought it was very practical, so I shared it with you as a reference. Let's follow the editor and have a look. The four storage engines commonly used in MySQL are: MyISAM storage
2022-06-01 03:50:57Details
The strongest snail has unlimited resources to buy the cracked version so that you can play continuously.
The strongest snail unlimited resources in-house cracked version is a very popular leisure adventure nurturance mobile game recently. The painting style of the game is very strange, with a lot of interesting copy content challenges, players are like watching the story while playing the game, very interesting. In the game, you will change.
2022-06-01 04:48:35Details
The extraction time of bid evaluation experts, how long in advance is appropriate?
Article 22 of the http://www.zhaobiao.cn/ measures for the Administration of experts on Evaluation of Government Procurement (hereinafter referred to as the measures) stipulates that "in principle, the time for the selection of evaluation experts shall be half a day or one day before the bid opening, and shall not exceed two days under special circumstances.
2022-06-01 06:18:08Details
What are the differences in the implementation of delete table operation in MySQL
This article is to share with you about the differences in the implementation of table deletion in MySQL. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look. This paper mainly talks about three operations of deleting tables in mysql, delete statement and tru.
2022-05-31 23:37:44Details
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