介绍
jsonDB2是一个基于内存的键值对数据库(非关系型数据库)
安装
$ pip install jdb2
或者
$ git clone https://github.com/spdir/jsonDB2.git
$ cd jsonDB2
$ python setup.py install
使用
- 初始化实例
import jdb2
#初始化一个空的DB
n = jdb2.NoSql()
#将原来的数据导入到数据库,并配置自动持久化
n = jdb2.NoSql(dump=True, nosqlFile='filePath', dumpTime=10)
# dump: 启动持久化,并导入已有数据, 默认: False
# nosqlFile: 持久化文件路径
# dumpTime: 持久化时间间隔(单位: 秒), 默认: 30
#创建一个数据库, 如果数据库存在此库，则返回存在库的对象
d1 = n.createDB('d1')
- 操作使用
>>> import jdb2
>>> n = jdb2.NoSql() #初始化实例对象
>>> d1 = n.createDB('d1') #创建一个DB
>>> t1 = d1.createTable('t1') #创建一张表
>>> d1.setValue('a','b') #db设置一个参数
>>> d1.getValue('a') #db获取一个参数
'b'
>>> t1.setValue(1,2) #tb设置一个参数
>>> t1.getValue(1) #tb获取一个参数
2
>>> d1.getValues() #获取所有的value
[{1: 2}, 'b']
>>> d1.getKeys() #获取所有的key
['t1', 'a']
>>> d1.getItems() #获取所有的键值对, 返回list
[('t1', {1: 2}), ('a', 'b')]
>>> d1.dropKey('a') #删除一个键或者一张表
>>> d1.setValue('c','d')
>>> d1.clearKey('c') #清除一个key的内容
>>> d1.getItems()
[('t1', {1: 2}), ('c', None)]
>>> d1.clearKey('t1') #清除一张表的内容
>>> d1.getItems()
[('t1', {}), ('c', None)]
>>> t1.lenTable() #获取数据库或表长度
1
>>> d1.allData() #获取所有的表或库的所有键值对，返回dict
{'t1': {}, 'c': None}
1 maintainer
Release files for jdb2 0.2.2
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| jdb2-0.2.2.tar.gz | 4.6 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| jdb2-0.2.2-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 9.4 kB
Release files / jdb2-0.2.2.tar.gz
| Download URL | jdb2-0.2.2.tar.gz |
|---|---|
| Size | 4.6 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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twine/1.11.0 pkginfo/1.4.2 requests/2.19.1 setuptools/40.0.0 requests-toolbelt/0.8.0 tqdm/4.24.0 CPython/3.7.0
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Release files / jdb2-0.2.2-py3-none-any.whl
| Download URL | jdb2-0.2.2-py3-none-any.whl |
|---|---|
| Size | 4.9 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
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| Uploaded via |
twine/1.11.0 pkginfo/1.4.2 requests/2.19.1 setuptools/40.0.0 requests-toolbelt/0.8.0 tqdm/4.24.0 CPython/3.7.0
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