Fri, 17 May 2024


How to load a flat file in a MySQL database?

By: Peter, NetArt Media
Thu, 22 July 2021

The default format of a file to load into a MySQL table is as follows: the fields must be separated by tabs, the input lines terminated by '\n', and backslashes(\), newlines (\n), and tabs (\t) escaped by a backslash. The MySQL documentation explains how to change these defaults.

This example loads a flat file called infile.txt to a MySQL table named mysql_2_table with an INT and a VARCHAR(20) column.

try
{
// Create the statement
Statement stmt = connection.createStatement();

// Load the data
String filename = "c:\\\\temp\\\\infile.txt";
String tablename = "mysql_2_table";
stmt.executeUpdate("LOAD DATA INFILE \"" + filename + "\" INTO TABLE " + tablename);

// If the file is comma-separated, use this statement
stmt.executeUpdate("LOAD DATA INFILE \"" + filename + "\" INTO TABLE "
+ tablename + " FIELDS TERMINATED BY ','");

// If the file is terminated by \r\n, use this statement
stmt.executeUpdate("LOAD DATA INFILE \"" + filename + "\" INTO TABLE "
+ tablename + " LINES TERMINATED BY '\\r\\n'");
}
catch (SQLException e)
{

}


Category: Web Development
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