Database delimited file mysql tab updating upload
The following describes the different techniques (again, in order of importance) you can use to quickly insert data into a table.
You can temporarily disable updating of non unique indexes.
The records are imported into the table specified by this filename.Download PDF Tutorial: Load data CSV to My SQL The Load Data Syntax: LOAD DATA [LOW_PRIORITY | CONCURRENT] [LOCAL] INFILE ‘file_name’ [REPLACE | IGNORE] INTO TABLE tbl_name [CHARACTER SET charset_name] [ [TERMINATED BY ‘string’] [[OPTIONALLY] ENCLOSED BY ‘char’] [ESCAPED BY ‘char’] ] [LINES [STARTING BY ‘string’] [TERMINATED BY ‘string’] ] [IGNORE number LINES] [(col_name_or_user_var,…)] [SET col_name = expr,…] Consider we have to load file with following contents: This is a very common and simple scenario. So, the command will become: – If we want to replace existing data by data being loaded from file, we will add REPLACE keyword before INTO TABLE. Passing null value will make col-1 to take an auto-increment value.Quick updates: – Ofcourse, if we don’t have column headers (col-1,col-2,col-3) in example.csv, IGNORE 1 LINES is not required. Similarly if we want input rows that duplicate an existing row on a unique key value to be skipped, we will use IGNORE keyword before INTO TABLE. Using SET you can assign values to those columns which were not available in csv and are not-null. Filling the extra date columns: This is very similar to 3.Yesterday I looked at using mysqldump to save data to CSV files, which by default saves the exported data as tab delimited files.Today we will look at how to restore data from these files into a My SQL database.
The solution is to simply pass the full path of the text files as part of the filename as given in the first example.