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Blog Archives
SQLite Tool-set
Random list of very interesting projects (will be updated, guys). I will add my own ideas/impression as soon as possible. From simpler to more complex stuff: sqlite-utils is a rather useful tool for managing SQLite databases, importing structured data and … Continue reading
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SQLite, again (updated)
SQLite is slowing becoming a new standard. It is fast, and has a growing number of features. Useful settings PRAGMA journal_mode = wal; PRAGMA foreign_keys = true; Query, set, or clear the enforcement of foreign key constraints. PRAGMA busy_timeout=….; In milliseconds, … Continue reading
Simple method to add historic feature to SQLite
Abstract: Make a database which can be store historic modification is often considered a “secondary” activity, but bad design leads to databases that are difficult to optimize and often not very understandable. In this article we illustrate a simple method … Continue reading
Posted in English Content, IT Featured, Knowledgebase, Structured Query Language (SQL)
Tagged database, sqlite
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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 … Continue reading
Posted in English Content, Knowledgebase, Structured Query Language (SQL)
Tagged dup, duplicate, duplicates, evil, oracle, postgresql, removal, sql
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