15 Oct 20

Maps and database of 802.11 wireless networks, with statistics, submitted by wardrivers, netstumblers, and net huggers.

by mlb

12 Nov 18

A write up on what are some of the things to consider when deciding on the size of a database connection pool

by mlb

30 Mar 11

OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase. OpenTSDB was written to address a common need: store, index and serve metrics collected from computer systems (network gear, operating systems, applications) at a large scale, and make this data easily accessible and graphable.

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20 May 10

SchemaSpy is a Java-based tool (requires Java 5 or higher) that analyzes the metadata of a schema in a database and generates a visual representation of it in a browser-displayable format. It lets you click through the hierarchy of database tables via child and parent table relationships as represented by both HTML links and entity-relationship diagrams. It’s also designed to help resolve the obtuse errors that a database sometimes gives related to failures due to constraints.

by mlb

19 May 10

ImageNet is an image database organized according to the WordNet hierarchy (currently only the nouns), in which each node of the hierarchy is depicted by hundreds and thousands of images.

by mlb

18 Mar 10

Interesting observations about the date and time related types in MySQL. The comments also contain interesting informations

by mlb

17 Oct 09

Freebase is an open, shared database that contains structured information on millions of topics in hundreds of categories.

by mlb

Recently, a lot of new non-relational databases have cropped up both inside and outside the cloud. One key message this sends is, “if you want vast, on-demand scalability, you need a non-relational database”. If that is true, then is this a sign that the once mighty relational database finally has a chink in its armor? Is this a sign that relational databases have had their day and will decline over time?

by mlb