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  • SQL: One of the most valuable skills - Craig Kerstiens

    calendar Feb 19, 2019 · 2 min read
     en sql  · postgresql sql sqlite
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    I admit it. I suffered from an “algebra narcoleptic syndrome” during my relational database lessons at University (1996 circa).


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  • Outer full and inner SQL joins: you are wellcome

    calendar Aug 27, 2018 · 1 min read
     en sql  · sql
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    For a complete description see https://www.codeproject.com/Articles/33052/Visual-Representation-of-SQL-Joins

    All the Join you want
  • SQLite Oracle Compatibility Layer

    calendar Aug 7, 2018 · 1 min read
     en projects python software-projects sql  · oracle sql sqlite
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    The Sqlite Oracle Compatibility Functions is an experimental compatibility layer for SQLite vs Oracle, written in Python 3.


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  • Removing duplicate rows in PostgreSQL, Oracle and SQLite

    calendar Jun 15, 2017 · 1 min read
     en knowledgebase sql  · evil oracle postgresql sql
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    Removing duplicate rows in PostgreSQL, Oracle and SQLite

    Sometimes you need to remove nasty duplicate on a table, based on a subset of the column. On every big database there is something called “rowid” which can be used to indentify a column in a unique way. On PostgreSQL is called ctid, as we shall see:


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  • Italian Accent Oracle fix

    calendar Feb 10, 2017 · 1 min read
     en sql  · oracle relax
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    In Italian language we have accent words like àèéìòù


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    Giovanni Giorgi

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