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This article mainly introduces considerations for migrating Oracle to the MySQL database. we encountered the following problems during the actual conversion process, therefore, the main purpose of sharing this article is to provide some practical

The following article describes the experiences of MySQL connection strings. If you are interested in the actual operations related to MySQL connection strings, you can click to view the following articles. I hope it will help you in this regard. 1.

The following is a detailed explanation of the MySQLgrant syntax. If you are interested in the actual operations related to the MySQLgrant syntax, you can click and view the following articles. We all know that the simple format of commands for

Kettle error: unexpectedproblemreading?dobjectsfromxmlfile: the null fault repeats itself: in the test environment, the table output is shared and then shared is deleted. After these column operations, the error occurs, when saving the new

A customer needs to have two business tables with a large data volume and rows. Now we need to record part of these two tables, separate data based on a certain where condition and create an archive table to migrate the table records. The final

Redis's main data structure linked list Redis uses a C language that does not have a built-in data structure, so Redis has built its own linked list implementation. One of the underlying implementations of the list key is the linked list. A list key

It is an indisputable fact that using cache can improve report performance. Generally, high-end report tools provide the report cache function to cache the computing results of the entire report to the file system, this allows you to quickly read

Today we are going to discuss with you the basic test of two MySQL performance items. I saw the basic test materials for two MySQL performance items on a reputable website two days ago, I think it's good. I just want to share it with you. I hope you

We all know that in MySQL database query optimization, the actual application of the database {for example, MySQL (the best combination with PHP)} means the actual operation and use of related tools. Using indexes and using EXPLAIN to analyze

Continue writing. In fact, importing and exporting hdfs from mysql is useless for actual project development, but that can be used for getting started. Today we are writing about collaboration with Hbase and Hive. I suddenly found that the sequence

I remember a friend who was checking mongodb logs a few days ago may not be able to locate the problem. Today, the system will talk about mongodb's log system. Mongodb has four types of logs. These are system logs, Journal logs, oplog Master/Slave

When using the SQLite database, we may find that Chinese characters are displayed when inserting data into the database, however, garbled characters are displayed when read through SQLite. This is because the encoding method supported by SQLite is

I introduced the basics of MongoDB in the front. We recommend two websites here. You can check them and explain them in more detail: Region #. Let's take a look at the data management and architecture of MongoDB in this article. We have introduced

The Charging System of the IDC has been completed for several days, but the summary has not been written until now. During the acceptance, the master asked me a lot of questions. There were two acceptance questions, and I felt very rewarding. Now we

During routine database maintenance, the ogg process is often stopped. Sometimes there is an error prompting that a transaction has been executed for a long time. The OGG prompts that SENDEXTRACT can be used. The ogg process is often stopped during

Conditions in Oracle databases where a datafile can be dropped Conditions in Oracle databases where a datafile can be dropped Refer to the mos article:Unable to Drop a Datafile From the Tablespace Using Alter Tablespace Command (Document ID 10

Let's talk about our company's redis application scenarios. Currently, online games use redis as the front-end cache of MongoDB to store data that gamers need to access frequently. Let's talk about our company's redis application scenarios.

New Features of MySQL6.0 (Note: The content here will change as MySQL6.0 is still in its early stages) the following features have been or will be added to MySQL6.0: ◆ new Falcon transaction storage engine (see 13.8, "Falcon storage engine"); ◆

The change tracking function of RMAN improves the performance of Incremental backup by recording the changed data blocks in each data file in the change tracking file. If change tracking is enabled, RMAN enables The change tracking function of RMAN

Several common methods for viewing Oracle execution plans-Series 1 (blog. csdn. netbisalarticledetails38919181) This blog post mentioned a hidden problem: "Hiding problem 2: The experiment found that using select * fromtable (dbms_xplan.display_awr (