I haven’t talked about Python for a long time, not because I don’t have things to tell, but because I’ve been focused on what I’ve already explained here, and I haven’t expanded on other fields. In today’s post, I present SQLAlchemy, a powerful Python library for working with relational databases. The basic concept is the antipode to what I have always done (I still have to rethink this new way of programming): The use of normal Python objects to represent database tables and query execution There are a number of...read more

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Today I am writting related to a Google project called Lovefield, and it is a Javascript Relational Database designing for developing web applications. I have met this projects thanks to the Google website where they have published all Open Source projects the contribute to, or they have develop, order by categories. Here you have their creator, a googler, explaining what Lovefield is about: Lovefield The basic idea of Lovefield is to use relational models to develop webapps, by using a database either online either offline. The second feature is to...read more

Esta entrada Lovefield, the Javascript Relational Database es contenido original de Manejando datos - …

I am working a a project in the University and I need to re-create a table. For that task, I’m thinking in two ways: using TRUNCATE, or dropping the table and create it again. TRUNCATE is a SQL sentence that empties a table, and for using it, you need to be granted as using DROP priviledge. autokey is reset to zero. The second option is using DROP a table, and create it again using CREATE TABLE. Para valorar de las dos opciones es más rápida, vamos a utilizar PROFILE, para...read more

Esta entrada Faster method: TRUNCATE or DROP a table? es contenido original de Manejando datos - Blog de bases de datos y programación. This entrance …

This entrance is dedicated to a new website for learning #BigData in spanish: SoyData.net. What is SoyData.net It is a collaborative online training platform on all matters relating to data in spanish. It now has 15 fully uploaded and available courses to which they have registered more than five hundred people in just two weeks. These courses address specific high demand technologies like Hadoop, MongoDB, R and cover key areas such as visualization, cloud computing or Structured Query Language (SQL). It also provides an introduction to #BigData concept for those...read more

Esta entrada Learning #MySQL at SoyData.Net es contenido original de Manejando datos - Blog de bases de datos y …

Today’s entrance pretend to give you two good recommendations, after a whole morning busy trying to solve a simple cuestion. The objective is linking a table that lives on a MySQL o MariaDB server on Microsoft Access, using ODBC (using MS Access as a MySQL front-end). This simple task, can be too dramatic if you …

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Esta entrada Linking MySQL-MariaDB under MS Access es contenido original de Manejando datos - Blog de bases de datos y programación. This entrance Linking MySQL-MariaDB under MS Access is created by …

Let’s keep on learning more and more about common-schema, and I execute a query about redundant keys: SELECT * FROM common_schema.redundant_keys; The result to this query informs me that these keys are, literally, redundant, and the optimal solution si to remove them. Also, the query has more interesting information! After this, you think: “Well, if …

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Esta entrada Common-schema: redundant keys on MySQL-MariaDB es contenido original de Manejando datos - Blog de bases de datos y programación. This entrance Common-schema: …