ndvi data

Today, I am working on a website project. This error is found: Data truncation: data too long for column 'dcontent' at Row 1. I checked the following. It is found that the length of the table I inserted into the text box is greater than 65535, that is, the default length of text .. Later, I changed the field type of "DContent" to mediumtext, so that this error will not occur. Therefore, if someone finds thi

I. DataCubeIt is defined by dimensions and facts. A dimension is a perspective or entity that an organization wants to save records. One or a group of attributes in the corresponding dimension mode. This mode should be a fact table (central table ). Each dimension has a table associated with it, which is called a dimension table. It further represents the dimension. Dimension tables can be set by users or experts, or automatically generated and adjusted based on

Tags: des style blog http io ar color OS useBefore you start, say the online, most of the blog about this aspect or something else, on my own feelings, the first is not detailed, the second language can not be very good for beginners to understand.The title of my blog is used three sentences, is to facilitate other people to find good;What is the use of the method described here? Using it, you can refresh the page without flash, and get the data feedb

The page $ _ POST cannot accept post data, but uses get to submit. $ _ GET can be connected to html: Myform Php: Transform If (isset ($ _ GET ['hoby']) { Echo $ _ GET ['hoby']; } ?> This is the code I just wrote, submitted using the get method, and then the php section can be connected to data with $ _ GET, However, once the submission method is changed

Why the JavaScript eval function, when parsing JSON data, is prefixed with parentheses. Why do I have to eval here to add "(" ("+data+")); The reason is that eval itself is a problem. Since JSON starts and ends with "{}", in JS it is treated as a block of statements, so it must be coerced into an expression. The purpose of parentheses is to force the Eval function to force an expression in parenth

PHP IE8 can get data when reading the database, Chrome, 360, FF and other browsers can't get the data

The following content is taken from the Internet and sorted out. Terms: Bi (Business Intelligence): Business Intelligence, DW (data warehouse): Data Warehouse. For details, see section Q1. OLTP (on-line transaction processing): Online Transaction Processing It is also known as a transaction-oriented processing system. Its basic feature is that the customer's raw data