es data type mean in database

Basic concepts of databases (II)Zeng shxiongOriginal article: http://www.ascc.sinica.edu.tw/nl/83/1009/section3_3.html Liu Jianwen sorting (http://blog.csdn.net/keminlau) This article is based on 10th exams, 08, 68 pagesIi. File introduction (I)

When developing Web applications, you often have to add search capabilities. I didn't even know what to search, so I drew a magnifying glass on the sketch. Search is a very important feature, so lucene based tools like Elasticsearch and SOLR become

xml| Data XML Tutorials Not all the data in the world is in XML format. In fact, it can be boldly said that most of the data accumulated in the world is not in XML format. A large amount of data is saved in unformatted text, HTML, and

Disk Space Usage and SQL Server performanceby Gregory A. LarsenWhen you think of SQL Server performance components, you think of the usage of CPU, memory, and the I/O it takes to Proces s a query. However, there is another component you should

This is a creation in Article, where the information may have evolved or changed. 1. Preface Time includes time values and time zones, and there are incomplete and ambiguous times when you do not include timezone information. When transmitting or

An Introduction to tracking statistics with graphite, statsd, and collectdtagged in: Ubuntu, monitoring, system toolsthis tutorial is part 1 of 4 in the series: Introduction to tracking statistics on serversintroduction There are plenty of reasons

Have time to re-typesetting later.The back is getting messy. Do not have time to sort out the trouble to open the link to try it.This is what I have prepared for my classmates, but also the resources I have collected since the introduction to Python

PHP, a nested abbreviated name, is an abbreviation for the English Super Text preprocessing language (Php:hypertext preprocessor). PHP is an HTML embedded language, PHP and Microsoft's ASP quite a bit similar, is a server-side implementation of

completed job Description: 1. Elasticsearch and related plugins have been installed on the local Windows machine. 2. The elasticsearch-php client is then installed in the Laravel. 3, wrote the following such a Searchcontroller controller: Client

2. lifecycle of the activity during horizontal and vertical screen Switching1. When the Android: configchanges of the activity is not set, the split screen will call the lifecycle of each activity again. The split screen will be executed once, and