load-data-infile

问题 I want to speed up a data loading. I use MySQL 5.5, InnoDB and have 1M rows of data (65Mb file). It takes 5 minutes. What mysql settings and commands affect the speed of LOAD DATA INFILE for InnoDB? Thank you. 回答1: I can recommend these settings to improve load time: innodb_doublewrite = 0 innodb_support_xa = 0 innodb_buffer_pool_size = (50-80% of system memory) innodb_log_file_size = (a large number - 256M etc) innodb_flush_log_at_trx_commit = 0 Other than settings, there are some things you

问题 I'm using MySQL LOAD DATA INFILE to move CSV file data into a database table. I'm looking for a way to reference the original file line number (row) in the imported record. So that a table like this: CREATE TABLE tableName ( uniqueId INT UNSIGNED NOT NULL PRIMARY_KEY, import_file VARCHAR(100), import_line INT, import_date = DATETIME, fieldA VARCHAR(100), fieldB VARCHAR(100), fieldC VARCHAR(100) ); Where import_file,import_line and import data are meta data relevant to the specific file import

问题 I am trying to load data into a table of my MySQL database, and getting this error. LOAD DATA LOCAL INFILE 'C:\Users\Myself\Desktop\Blah Blah\LOAD DATA\week.txt' INTO TABLE week; Reference: this The path is hundred percent correct, I copied it by pressing shift and clicking "copy path as" and checked it many times. So any tips on this will be much appreciated . . My research: Seeing this answer, I tried by changing C:\Users to C:\\Users . It did not work for me. Secondly, is there a way to

问题 I am looking for a syntax definition, example, sample code, wiki, etc. for executing a LOAD DATA LOCAL INFILE command from python. I believe I can use mysqlimport as well if that is available, so any feedback (and code snippet) on which is the better route, is welcome. A Google search is not turning up much in the way of current info The goal in either case is the same: Automate loading hundreds of files with a known naming convention & date structure, into a single MySQL table. David 回答1:

问题 I am running into a permission error when trying to load data from a flat file database dump into a new table. I know that the schema of the file and my table is the same and I tried tweaking the permissions. What else should I try? mysql> load data infile 'myfile.txt' into table mytable fields terminated by ',' enclosed by '"'; ERROR 1045 (28000): Access denied for user 'user'@'%' grant all on mytable.* to 'user'@'% 回答1: Here's a thread on the MySQL forums that discusses exactly this. Here's

问题 I use MySQL queries all the time in PHP, but when I try LOAD DATA INFILE, I get the following error #1045 - Access denied for user 'user'@'localhost' (using password: YES) Does anyone know what this means? 回答1: I just ran into this issue as well. I had to add "LOCAL" to my SQL statement. For example, this gives the permission problem: LOAD DATA INFILE '{$file}' INTO TABLE {$table} Add "LOCAL" to your statement and the permissions issue should go away. Like so: LOAD DATA LOCAL INFILE '{$file}'

问题 I've got a CSV file with 11 columns and I have a MySQL table with 9 columns. The CSV file looks like: col1, col2, col3, col4, col5, col6, col7, col8, col9, col10, col11 and the MySQL table looks like: col1, col2, col3, col4, col5, col6, col7, col8, col9 I need to map the columns 1-8 of CSV file directly to the first 8 columns of the MySQL table. I then need to skip the next two columns in the CSV file and then map column 11 of CSV file to column 9 of MySQL table. At the moment I am using the

问题 I'm using LOAD DATA INFILE to import 11M records and then the script continues with other operations. The import takes 10 minutes by which time the browser has given up (after 3 minutes) and I don't see the progress of the subsequent operations. Is there a way to output something to the browser periodically while this time consuming query is running. Phpmyadmin seems to do something like this and the browser doesn't time out. 回答1: Check out flush() (http://php.net/manual/en/function.flush.php

问题 I'm trying to import data into a MySQL table with values not defined in the input file. I have this php string concatenated query: "LOAD DATA LOCAL INFILE '".@mysql_escape_string($this->file_name). "' IGNORE INTO TABLE `".$this->table_name. "` FIELDS TERMINATED BY '".@mysql_escape_string($this->field_separate_char). "' OPTIONALLY ENCLOSED BY '".@mysql_escape_string($this->field_enclose_char). "' ESCAPED BY '".@mysql_escape_string($this->field_escape_char). "' LINES TERMINATED BY '". $this-

问题 I have hit a problem and i cant seem to get over it. I am taking information from a text file(two columns 29.12 23.42 for example separated by a space), using LOAD LOCAL DATA INFILE . Initially this was working with only one column in MySQL, however i have had to add an ID AUTO INCREMENT so i can use the most recent entry, in addition i want to now store the other column in my Database. Here is my code, its probably pretty obvious but I can't seem to find it: <?PHP $username = "root";