Flask-SQLAlchemy - Transfer / Import Data From SQLite to MySQL












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I am relatively new in database system design. I need to build a tool using Flask-SQLAlchemy which accepts relatively smaller SQLite databases (intermediate DBs) as its input and stores the data into a MySQL database (central DB / master record).



My questions are:




  1. What is the most efficient (and possibly performant) programmatic way to achieve this goal? What libraries / extensions do I need to use?

  2. I did some research and found some suggestions to convert the intermediate DBs to other format first, e.g. CSV, XML, before inserting the data to the central DB. Do I need to perform this conversion?


Few notes:




  • I have the schema for the central DB already defined using Flask-SQLAlchemy ORM.

  • The schemas of intermediate DB and central DB are not one-to-one. However, the columns in intermediate DB can be seen as the subset of the columns in the central DB.










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    0














    I am relatively new in database system design. I need to build a tool using Flask-SQLAlchemy which accepts relatively smaller SQLite databases (intermediate DBs) as its input and stores the data into a MySQL database (central DB / master record).



    My questions are:




    1. What is the most efficient (and possibly performant) programmatic way to achieve this goal? What libraries / extensions do I need to use?

    2. I did some research and found some suggestions to convert the intermediate DBs to other format first, e.g. CSV, XML, before inserting the data to the central DB. Do I need to perform this conversion?


    Few notes:




    • I have the schema for the central DB already defined using Flask-SQLAlchemy ORM.

    • The schemas of intermediate DB and central DB are not one-to-one. However, the columns in intermediate DB can be seen as the subset of the columns in the central DB.










    share|improve this question

























      0












      0








      0







      I am relatively new in database system design. I need to build a tool using Flask-SQLAlchemy which accepts relatively smaller SQLite databases (intermediate DBs) as its input and stores the data into a MySQL database (central DB / master record).



      My questions are:




      1. What is the most efficient (and possibly performant) programmatic way to achieve this goal? What libraries / extensions do I need to use?

      2. I did some research and found some suggestions to convert the intermediate DBs to other format first, e.g. CSV, XML, before inserting the data to the central DB. Do I need to perform this conversion?


      Few notes:




      • I have the schema for the central DB already defined using Flask-SQLAlchemy ORM.

      • The schemas of intermediate DB and central DB are not one-to-one. However, the columns in intermediate DB can be seen as the subset of the columns in the central DB.










      share|improve this question













      I am relatively new in database system design. I need to build a tool using Flask-SQLAlchemy which accepts relatively smaller SQLite databases (intermediate DBs) as its input and stores the data into a MySQL database (central DB / master record).



      My questions are:




      1. What is the most efficient (and possibly performant) programmatic way to achieve this goal? What libraries / extensions do I need to use?

      2. I did some research and found some suggestions to convert the intermediate DBs to other format first, e.g. CSV, XML, before inserting the data to the central DB. Do I need to perform this conversion?


      Few notes:




      • I have the schema for the central DB already defined using Flask-SQLAlchemy ORM.

      • The schemas of intermediate DB and central DB are not one-to-one. However, the columns in intermediate DB can be seen as the subset of the columns in the central DB.







      mysql sqlite flask sqlalchemy flask-sqlalchemy






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      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 21 '18 at 7:15









      Sam Tatasurya

      124110




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