EasySql | 一个轻便的Android Sqlite orm库,可以方便的利用注解来操作和生成数据库 | Database library
kandi X-RAY | EasySql Summary
kandi X-RAY | EasySql Summary
其中,Table和Column的name属性分别代表着数据库中的表名和列名, 而Table中的onCreated 属性,则表示Sqlite在回调onCreate之后,执行的Sql语句,你可以根据需要自定义的添加一些Sql语句,例如像事例说的那样,添加一个索引。 Column的isId属性,则表示是否是主键,autogen则表示是否自增,property则提供能力给你添加更多的列描述。. 同时也提供了onUpgrade 和 onDowngrade的方法,可供复写,用来兼容数据库升级和降级的情况。 继承了之后,还需要应用,需要在创建SqliteDBConfig的时候通过addTableMapping方法添加进去这个类和描述的映射就可以了:事例代码如下:.
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Top functions reviewed by kandi - BETA
- Query first
- Returns a string representation of this query
- Is the table exist?
- Returns a string that contains the where items
- Insert list
- Insert a table
- Update table
- Update table
- Builds the update sql info
- Insert value in table
- Insert a table
- On create table
- Builds the table string
- Converts a Cursor to a bean
- Set value from cursor
- Initializes the table
- On downgrade
- Query all entities
- Delete given entity
- Execute raw query
- Gets the column index
- Converts an object to a byte array
- To object
- On upgrade
EasySql Key Features
EasySql Examples and Code Snippets
Community Discussions
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QUESTION
This question is more about how one uses OOP to read in databases. SQLite and sqlite3 are simply examples to work with, and are not the main thrust of the question. (Arguably Python is only used here to explain my point):
I am creating a software package which allows users to query SQLite index files which have already been generated. It's basically syntactic to make it super user-friendly to query SQLite files indexed in a certain way, for a very particular case This should be quite straightforward, but I am somewhat confused how to "automatically" read in the SQLite
Here's an example (with pseudo-code):
...ANSWER
Answered 2017-Dec-08 at 16:10If you can properly discern the type of file you can easily store that as internal reference and throw errors when trying to access 'invalid' indexes. You can also establish the connection to your SQLite file in the __init__()
as, short of network drives, you won't need reconnection handling.
There are, of course, edge cases, but this should get you started:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install EasySql
You can use EasySql like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the EasySql component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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