uncleflo
Registered since September 28th, 2017
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Managing Hierarchical Data in MySQL
Saved by uncleflo on May 15th, 2017.
Most users at one time or another have dealt with hierarchical data in a SQL database and no doubt learned that the management of hierarchical data is not what a relational database is intended for. The tables of a relational database are not hierarchical (like XML), but are simply a flat list. Hierarchical data has a parent-child relationship that is not naturally represented in a relational database table. For our purposes, hierarchical data is a collection of data where each item has a single parent and zero or more children (with the exception of the root item, which has no parent). Hierarchical data can be found in a variety of database applications, including forum and mailing list threads, business organization charts, content management categories, and product categories.
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'MySQLi' for Beginners - Codular
Saved by uncleflo on February 22nd, 2015.
Nearly every site that you visit nowadays has some sort of database storage in place, many sites opt to use MySQL databases when using PHP. However, many people haven't yet taken the step to interacting with databases properly in PHP. Here we guide you through what you should be doing - using PHP's MySQLi class - with a hat-tip to the one way that you definitely shouldn't be doing it.
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DataImportHandler - Solr Wiki
Saved by uncleflo on September 9th, 2010.
Most applications store data in relational databases or XML files and searching over such data is a common use-case. The DataImportHandler is a Solr contrib that provides a configuration driven way to import this data into Solr in both "full builds" and using incremental delta imports. Also see the DataImportHandlerFaq page. For simple usecases visit the DIHQuickStart. As the name suggests, this is implemented as a SolrRequestHandler. The configuration is provided in two places.
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