what is udf format

What is ASP? What can it do? 1. What is ASP? Literally, ASP has three meanings: 1. Active: ASP uses Microsoft ActiveX technology. ActiveX (COM) technology is an important foundation of Microsoft software. It adopts the technology

　　What is raw file format? Raw format is a special format of digital camera, is the real meaning of "electronic film." The raw format

In oracle, what happens when a value in date time format is inserted into a field in varchar2 format ?, Oraclevarchar2 -- Create Table test1 Create table TEST1(ID VARCHAR2 (40) default sys_guid (),TDATE VARCHAR2 (200))Tablespace APP_TX_DATAPctfree 10Pctused 40Initrans 1Maxtrans 255Storage(Initial 64 KMinextents 1Maxex

, which is irreplaceable, but JPEG is lossy compression, image quality will be lost. In addition, the general screen screenshot in PNG format, not only higher than JPEG quality and file size is also smaller. GIF and PNG image comparison: GIF only in the field of simple animation has advantages (in fact, GIF 256 color

Copy the Code code as follows: /********************* @file-path to File*/function Force_download ($file){if ((Isset ($file)) (File_exists ($file))) {Header ("Content-length:". FileSize ($file));Header (' Content-type:application/octet-stream ');Header (' content-disposition:attachment; Filename= '. $file. '"');ReadFile ("$file");} else {echo "No file selected";}} Here is an excerpt from the article published before this site. More tips can be use

What format is a multi-dimensional array of TPsession? Lt ;? Phpsession_start (); $ arr nbsp; = array ('1' = gt; 'A', '2' = gt; 'B'); $ arr nbsp; = array ('1' = gt; 'A', '2' = gt; 'BC'); // $ _ SESSION [what format is a TP

　　1, NH is what type of document: The NH format file is actually a document format for Chinese knowledge net 　　2, NH file with what open NH files need to use a special NH reader to browse, and Cajviewer

What is ASP, what can it do? One, what is ASP?In literal terms, ASP contains three meanings: 1. active:asp uses Microsoft's ActiveX technology. ActiveX (COM) technology is an important foundation for today's Microsoft software.

　　What is the MDF file MDF (Mirror Disc file) is a kind of optical disk image files, usually we use BT or other peer-to-peer software to download games or large documents, especially on the internet, the spread of game files often in MDF files, in fact MDF files and MDS files to use. Open MDF files commonly used software: Daemon Tools, alcohol 120%, Winmo

If the mysql version is too high, this format is not supported? If mysql version is too high, it does not support the format of insertinto $ tb (table) set $ var (field value? Parent class: classmysql { nbsp; public $ host; host nbsp; public $ db; database nbsp; public $ u

"Chinese characters, however, the bytecode in the source file of the script may be any type-GBK or GB18030 in Windows. So what python sees is a string of GBK/GB18030 encoded bytes, and you try to tell python that it is UTF-8-encoded, it naturally reports an error. The second problem is that you are not familiar with

functionality and focuses on data serialization.AvroThe Avro format was created by Doug Cutting and was designed to help compensate for sequencefile deficiencies.ParquetParquet is a columnar file format with a rich Hadoop system support, and can work with Avro, Protocol buffers and thrift. Although Parquet is a column

Some netizens have downloaded a set of Photoshop free video tutorials on the internet, and after downloading they found that the format file named Vdat is still to be appended. And this file directly double-click is not open file. What is the

What is a low-level format? Low-level format is to divide the blank disk into the cylinder and track, and then divide the track into several sectors, each sector is divided into the identification part ID, gap gaps and data areas

what file format is RTF? RTF is also called Rich Text Format or multiple text format, and RTF is the Rich Text format abbreviation, which m

First, epub is what format file There is a lot of content on the Web, epub is a free and open standard, which is a kind of content that can be "automatically rearranged", that is, the

, supports leading integrated compression technology, provides more than 150 video effects, and is equipped with more than 200 MIDI-compatible audio and equipment sound devices. It is an excellent video coding format whether it is broadcast locally or as a video streaming format