load data infile

About data input in the database ----------------- SELECT... the inverse operation of LOADDATAINFILE in INTOOUTFILE. we generally use insertintotable_namevalues (); to add records to the data table. this is a method. of course, you can also use the

Mysqlimport Example: mysqlimport-uroot-p123456 test/tmp/mytbl.txt; Convention: the last part of the file name is the table name. The database must be specified when the preceding statement is imported to the mytblmysqlimport table.   Import CSV

This article mainly introduces someMySQL databaseOfCommand LineSome Common commands, including starting and stopping services, user logon, user management, and use of commonly used batch processing commands. Let's take a look at them. Start and Stop

We use the current my-sql to compare the new version of my SQL 5.0 version. First, how to get my SQL 5.0 we can download from the Internet ([Url]www.mysql.cn[/url]).Let's look at how to install my SQL to support multiple platforms, that is, it can

I've got about 200,000 data inserts in my job, after the completion of the program to find the running timeout, modify PHP maximum execution time to 600, or timeout, check out before the number of data inserted before the calculation, probably to

INSERT the speed of the statementThe time required to insert a record is made up of the following factors, where the number represents the approximate scale: Connection: (3) Send query to server: (2) Analysis query: (2) Insert record: (1x record

Batch processing is a non-interactive way to run mysql programs. Like the commands you use in mysql, you will still use these commands.　　　　To implement batch processing, you need to redirect a file to the mysql program. First, we need a text file

Usage of mysqlloaddatainfile (importing 40 W data to mysql in 3-5 seconds) bitsCN.com If you want to import Chinese data, the utf8 character set in mysql will save the UTF-8 character set for the xxx.txt file you want to import. the command load

Backup is the simplest way to protect data. This section describes multiple backup methods. To get a consistent backup, make a lock tables lock on the relevant table. You only need one read LOCK. When you copy a file in the database directory, this

SQL-mysql common operation statements (Entry level), sqlmysql 1. Enter the database: Mysql-u root-p Mysql-h localhost-u root-p database_name 2. List Databases Show databases; 3. Select a database: Use databases_name; 4. List data tables: Show tables;

　　The speed of the insert query: The time to insert a record consists of the following: Connection: (3) Send query to server: (2) Analysis of the query: (2) Insert Record: (1 x record size) Insert Index: (1 x index) Off: (1) The numbers here

MySQL Performance tuning: The speed of the insert query: The time to insert a record consists of the following: Connection: (3) Send query to server: (2) Analysis of the query: (2) Insert Record: (1 x record size) Insert Index: (1 x index)

MySQL Common operation statement1.mysql-u root-p 2.mysql-h localhost-u root-p database_name2. List the databases:1.show databases;3. Select the database:1.use Databases_name;4. List the data tables:1.show tables;5. Display the properties of the

1 syntaxLOAD DATA [Low_priority | CONCURRENT] [LOCAL] INFILE ' file_name.txt '[REPLACE | IGNORE]Into TABLE tbl_name[Fields[TERMINATED by ' string '][[optionally] enclosed by ' char '][Escaped by ' char ']][LINES[Starting by ' string '][TERMINATED by

　　INSERT query speed: The time for inserting a record is composed of the following: Connection: (3) Send query to server: (2) Analysis query: (2) Insert record: (1 x record size) Insert index: (1 x index) Close: (1) The number here is a bit

INSERT query speed: the time when a record is inserted is composed of the following: (3) Send a query to the server: (2) analyze the query: (2) INSERT a record: (1x record size) insert index: (1x index) Disabled: (1) the number here is a bit

Document directory Mysqldump Backup Tool Cold backup: The cold backup of the InnoDB Storage engine is very simple. You only need to back up frm files, shared tablespace files, independent tablespace files (*. IBD), and redo log files of the

Step-by-step explanation of MySQL database performance adjustment MySQL performance adjustment: Insert query speed: The time for inserting a record is composed of the following: Connection: (3) Send query to server: (2) Analysis query: (2) Insert

SELECTintooutfile backup database data bitsCN.com SELECT into outfile backup database data select email into outfile "test.txt" from email; select substring (boss,), addr from guest; load data [LOW_PRIORITY | CONCURRENT] [LOCAL] INFILE "/opt/abc.txt"

MySQL hangs the Debugs1. Attaching to MySQL[Email protected]: gdb-p 12321232 is the PID of MySQL2. Show current thread(GDB) Info threads3. Show backtracking for all threads(GDB) thread apply all BTMySQL BINARYMysql> SELECT * from tbl_4;+----+-------+