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












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














    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






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 21 at 7:15









      Sam Tatasurya

      124110




      124110





























          active

          oldest

          votes











          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53406981%2fflask-sqlalchemy-transfer-import-data-from-sqlite-to-mysql%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown






























          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53406981%2fflask-sqlalchemy-transfer-import-data-from-sqlite-to-mysql%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          404 Error Contact Form 7 ajax form submitting

          How to know if a Active Directory user can login interactively

          TypeError: fit_transform() missing 1 required positional argument: 'X'