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https://github.com/markuman/mex-mariadb
MariaDB Client for GNU Octave (maybe this is compatible for MySQL and Matlab too)
https://github.com/markuman/mex-mariadb
gnu-octave mariadb matlab mysql octave
Last synced: about 1 month ago
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MariaDB Client for GNU Octave (maybe this is compatible for MySQL and Matlab too)
- Host: GitHub
- URL: https://github.com/markuman/mex-mariadb
- Owner: markuman
- License: mit
- Created: 2018-03-28T13:46:13.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2022-11-04T07:50:56.000Z (about 2 years ago)
- Last Synced: 2024-08-02T07:08:16.995Z (4 months ago)
- Topics: gnu-octave, mariadb, matlab, mysql, octave
- Language: C
- Homepage:
- Size: 28.3 KB
- Stars: 2
- Watchers: 4
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-mysql - mex-mariadb - MIT licensed MariaDB/MySQL Client Library for GNU Octave and Matlab. (Connectors)
README
# mex mariadb client
[](https://gitlab.com/markuman/mex-mariadb/commits/master)
* https://git.osuv.de/m/mex-mariadb
* Pull Mirror: https://gitlab.com/markuman/mex-mariadb
* Push Mirror: https://github.com/markuman/mex-mariadb
* test compiling
* MariaDB 5.5 @ Centos 7
* MariaDB 10.2 @ Alpine Linux
* MariaDB 10.3.29 @ macOS Big Sur 11.7.1
* run tests against
* MariaDB 10.1
* MariaDB 10.2
* MariaDB 10.3
* MySQL 5.7
# Build
```
$ make
mkoctfile --mex -L/usr/lib -lmysqlclient -lpthread -lz -lm -ldl -lssl -lcrypto -I/usr/include/mysql mariadb.c
```
On macOS use `make macos_mariadb` or `make macos_mysql` depending on which binaries are installed (MariaDB or MySQL). Use Homebrew to install the binary libraries with `brew install mariadb` or `brew install mysql`.
# example
you can take a look at `gitlabci.m` file too. the classdef file `mariadb.m` and the mex file `mariadb_.mex` are both used for testing.
## class def example
```
octave:1> sql = mariadb('hostname', '127.0.0.1', 'password', 'password');
octave:2> sql.query('create database octave')
ans = [](0x0)
```
to change a database, you can recreate your class
or change the property `sql.database = 'octave'`.
```
octave:3> sql = mariadb('hostname', '127.0.0.1', 'password', 'password', 'database', 'octave');
octave:4> sql.query('create table a (idx int)');
octave:5> sql.query('insert into a (idx) values (1),(2),(3),(4)');
octave:6> sql.query('select * from a')
ans =
{
[1,1] = idx
[2,1] = 1
[3,1] = 2
[4,1] = 3
[5,1] = 4
}
```
you can change the output format to matrix
```
octave:7> sql.output = 'mat'
sql =
octave:8> sql.query('select * from a')
ans =
NaN
1
2
3
4
octave:9>
```
## return structure
the return structure is always a cell.
```
octave:1> a = mariadb_('127.0.0.1', 3306, 'root', 'password', 'testdb', 'select * from a')
a =
{
[1,1] = idx
[2,1] = 1
[3,1] = 2
[4,1] = 8
[5,1] = 1
[6,1] = 2
[7,1] = 8
[1,2] = b
[2,2] = NULL
[3,2] = NULL
[4,2] = NULL
[5,2] = 1
[6,2] = 2
[7,2] = 3
}
```
```
select * from a;
idx |b |
----|--|
1 | |
2 | |
8 | |
1 |1 |
2 |2 |
8 |3 |
```
# mariadb()
## properties
* `hostname`
* char, default `localhost`
* `port`
* number, default `3306`
* `username`
* char, default `root`
* `password`
* char, default `password`
* `database`
* char, default empty string. Connects to no database
* `command`
* char, sql command
* `is_octave`
* boolean, determines if class was init on matlab or octave
* `output`
* char, defines the output format. currently supports only `mat` and `cell`
## methods
* `query(command)`
* executes sql command
* `to_mat()`
* only used internally to convert the cell output to matrix format.