QueryCSV
enable you to load CSV files and manipulate them using SQL queries then after you finish you can export the new values to CSV file
Why
it's started with this task that I need to merge 30 CSV file into one file and group it by day instead of the hour, I wrote a couple of lines of code to do that, but I knew it is not going to be the last task that I will need to manipulate the CSV files, so wrote this cmd app to help me on this kind of tasks, I hope that could help too.
Install
go get github.com/m7shapan/querycsvor download Binaries from releases page
How to use
β firstgroup = load group_a.csv
- loading file group_a.csv
+---------+-----+
| name | age |
+---------+-----+
| Mohamed | 26 |
| Asma | 26 |
| Ahmed | 23 |
+---------+-----+
β secondgroup = load group_b.csv
- loading file group_b.csv
+---------+-----+
| name | age |
+---------+-----+
| mahmoud | 24 |
| sara | 22 |
| khaled | 23 |
+---------+-----+
β groups = select * from firstgroup
β groups += select name, age from secondgroup
β show groups 10
+---------+-----+
| name | age |
+---------+-----+
| Mohamed | 26 |
| Asma | 26 |
| Ahmed | 23 |
| mahmoud | 24 |
| sara | 22 |
| khaled | 23 |
+---------+-----+
β group_by_age = select age, count(*) as count from groups group by age
β show group_by_age
error: wrong number of command parameters expected 2, found 1
β show group_by_age 10
+-----+-------+
| age | count |
+-----+-------+
| 22 | 1 |
| 23 | 2 |
| 24 | 1 |
| 26 | 2 |
+-----+-------+
β export group_by_age final_group.csv
file exported
Commands
load [file.csv] load only one file or all directory files in case of directory all files should be of the same csv structure
example:
testtable = load path/to/file.csv
testtable = load path/to/files
list list all existed tables name
show [tablename] [limit] print table data use the limit to limit rows number
example:
show testtable 10
export [tablename] [path/to/exported/file.csv]
example:
export testtable testtable.csv
Contact
Mohamed Shapan @m7shapan