Created
December 28, 2016 18:19
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Import datas for creating table and import from CSV to MySQL
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#!/bin/bash | |
# show commands being executed, per debug | |
# set -x | |
# define database connectivity | |
_db="xxxxxxxx" | |
_db_host="xxxxxxxx" | |
_db_user="xxxxxxx" | |
# _db_password="xxxxxx" | |
mysql_config_editor set --host=$_db_host --user=$_db_user --password | |
# define directory containing CSV files | |
_csv_directory="/path/to/csv" | |
# go into directory | |
cd $_csv_directory | |
# get a list of CSV files in directory | |
_csv_files=`ls -1 *.csv` | |
# loop through csv files | |
for _csv_file in ${_csv_files[@]} | |
do | |
# remove file extension | |
_csv_file_extensionless=`echo $_csv_file | sed 's/\(.*\)\..*/\1/'` | |
# define table name | |
_table_name="${_csv_file_extensionless}" | |
# get header columns from CSV file | |
_header_columns=`head -1 $_csv_directory/$_csv_file | tr ',' '\n' | sed 's/^"//' | sed 's/"$//' | sed 's/ /_/g'` | |
_header_columns_string=`head -1 $_csv_directory/$_csv_file | sed 's/ /_/g' | sed 's/"//g'` | |
echo "---> Creating table \`$_table_name\`" | |
# ensure table exists | |
mysql $_db << eof | |
CREATE TABLE IF NOT EXISTS \`$_table_name\` (name_temp_xyz VARCHAR(20)) ENGINE=InnoDB CHARACTER SET=utf8mb4; | |
eof | |
has_primary=false | |
# loop through header columns | |
for _header in ${_header_columns[@]} | |
do | |
# add column | |
column_type="text CHARACTER SET utf8mb4" | |
echo "adding \`$_header\`" | |
if [[ $_header == *"_id"* ]] | |
then | |
column_type="integer" | |
fi | |
if [[ $_header == "id" ]] | |
then | |
column_type="integer" | |
has_primary=true | |
fi | |
echo "-> type is $column_type" | |
# echo "exec: alter table \`$_table_name\` add column \`$_header\` $column_type collate utf8_general_ci" | |
mysql $_db --execute="alter table \`$_table_name\` add column \`$_header\` $column_type" | |
if [[ $_header == *"_id"* ]] | |
then | |
mysql $_db --execute="alter table \`$_table_name\` add index ($_header)" | |
echo "-> indexed" | |
fi | |
if [[ $_header == "id" ]] | |
then | |
mysql $_db --execute="alter table \`$_table_name\` add primary key ($_header)" | |
echo "-> primary key" | |
fi | |
done | |
echo "removing temp column" | |
mysql $_db --execute="alter table \`$_table_name\` drop column \`name_temp_xyz\`" | |
echo "importing datas..." | |
mysql $_db --enable-local-infile << eof | |
LOAD DATA LOCAL INFILE "$_csv_directory/$_csv_file" | |
INTO TABLE $_table_name | |
CHARACTER SET UTF8 | |
FIELDS TERMINATED BY ',' | |
OPTIONALLY ENCLOSED BY '"' | |
LINES TERMINATED BY '\n' | |
IGNORE 1 ROWS | |
eof | |
if [ "$has_primary" = false ] ; then | |
mysql $_db --execute="ALTER TABLE \`$_table_name\` ADD \`id\` INT NOT NULL AUTO_INCREMENT FIRST, ADD PRIMARY KEY(id)" | |
echo "added primary key" | |
fi | |
done | |
exit |
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