Importing data faster with MySQL
I use MySQL Workbench as GUI for connecting to my MySQL servers. It is notoriously slow when you want to import data. I recently tried to do this for a Schengen Visa data set. Often takes minutes to load data of even several 100 KBs.
To counter this, I use
LOAD DATA directly via the command line. I logged in with the command line using
mysql -u root and selected the database. I ran:
mysql> LOAD DATA INFILE '/data.csv' INTO TABLE data;
I got an error:
ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement
Then I ran it with LOCAL and series of errors & solutions I tried.
mysql> LOAD DATA LOCAL INFILE '/data.csv' INTO TABLE data; ERROR 3948 (42000): Loading local data is disabled; this must be enabled on both the client and server sides mysql> set global local_infile=true; mysql> LOAD DATA LOCAL INFILE '/data.csv' INTO TABLE data; ERROR 2068 (HY000): LOAD DATA LOCAL INFILE file request rejected due to restrictions on access.
This meant that I had to change how I logged in to the shell.
mysql -u root --local_infile=1
Then the data import worked successfully (and FAST!)
mysql> LOAD DATA LOCAL INFILE '/data.csv' INTO TABLE data; Query OK, 1767 rows affected, 8835 warnings (0.07 sec)
Now the CSV format was not being considered, so I had to split up the columns.
LOAD DATA LOCAL INFILE '/data.csv' INTO TABLE data FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\r\n' IGNORE 1 LINES;