matlab 2019 操作 sqlite 数据库

matlab 2019操作 sqlite有两种方式

https://www.mathworks.com/help/releases/R2019b/database/ug/working-with-the-matlab-interface-to-sqlite.html

从上面可以知道JDBC方式功能多于直接连接。

帮助文档说下载驱动，但是不用下载JDBC驱动，已经自带！

升级驱动办法，从下面网站下载，覆盖安装目录\Polyspace\R2019b\java\jar\polyspace 下的sqlite-jdbc.jar，重启matlab即可，

文件下载链接

Release versions: Download or Maven https://oss.sonatype.org/content/repositories/releases/org/xerial/sqlite-jdbc/
Latest snapshot (pre-release) versions are also available: https://oss.sonatype.org/content/repositories/snapshots/org/xerial/sqlite-jdbc/

JDBC方式连接tt.db办法

conn = database('tt.db','','','org.sqlite.JDBC','jdbc:sqlite:完整路径/tt.db')

第一个参数为数据库文件名字

注意最后一个参数为完整路径！

conn = 

  connection - 属性:

                  DataSource: 'tt.db'
                    UserName: ''
                      Driver: 'org.sqlite.JDBC'
                         URL: 'jdbc:sqlite:E:\...'
                     Message: ''
                        Type: 'JDBC Connection Object'
  Database Properties:

                  AutoCommit: 'on'
                    ReadOnly: 'off'
                LoginTimeout: 0
      MaxDatabaseConnections: 0

  Catalog and Schema Information:

              DefaultCatalog: ''
                    Catalogs: {}
                     Schemas: {}

  Database and Driver Information:

         DatabaseProductName: 'SQLite'
      DatabaseProductVersion: '3.32.3'
                  DriverName: 'SQLite JDBC'
               DriverVersion: '3.32.3.2'

从ts表中获取全部数据

sqlquery = 'SELECT * FROM ts';


results = fetch(conn,sqlquery)

results =

  4×3 table

    t1    t2                            t3                       
    __    ___    ________________________________________________

    1       1    {'12222222222223333333333333333333333444444444'}
    2      22    {'33'                                          }
    3     333    {'111'                                         }
    4     444    {'555'                                         }

关闭数据库

close(conn)

参考

https://www.mathworks.com/help/database/ug/sqlite-jdbc-windows.html

matlab 2019 操作 sqlite 数据库

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