what is fact and dimension in data warehousing

Data type confusion: what is an int (11 )?, Confusionint Http://everythingmysql.ning.com/profiles/blogs/data-type-confusion-what-is-an Over and over I see MERs that don't understand whatint(11)Really means. Their confusion

Why is the data always inserted? This post was last edited by YXQC on 2014-05-05 14:20:32 From one database to another, there are 8 million data in the table. while ($mssql _row = Mssql_fetch_array ($rs)) $MID = $mssql _row[0]; $sql = "INSERT into Flow01 (TDM,) VALUES (' $TDM ',)"; mysql_query ($sql); And the ID of the inserted table

What is the data type of a variableIn variables, because the variables occupy a different space unit (the site size is not the same), but also divided into several data types, like the supermarket packaging bags, there are several different types of goods, different products

what is ODS. The ODS (Operational data Store) is an optional part of the Data Warehouse architecture that has some of the features of the data warehouse and some of the features of the OLTP system, which are "topic-oriented, int

Ask the data returned by json for an inexplicable explanation. what is the preceding table? send a json file Request File Category. php Corresponding tables in the database Json result The data results contain a number of table data (emoticons]

Look at the online data with the text type effect efficiency What type of field is it used for? Save graphic format Reply content: Look at the online data with the text type effect efficiency What type of field is it used f

What is the relationship between the data table and the controller and the Model in ThinkPHP? what is the relationship between the data table and the controller and the Model in ThinkPHP? Reply to discussion (solution) Go thro

Php+mysql what is the fastest way to update millions data? Reply content: Php+mysql what is the fastest way to update millions data? InnoDB Read Detach Chaizi section to make redundant table Cache to do merge upda

What is the data format? A: 24: {s: 8: duration; I: 900; s: 8: redoable; s: 2: 20; s: 8: onebyone; s: 1: 0; s: 7: answers; s: 1: 1; s: 13: given_answers; s: 1: 1; s: 17: shuffle_questions; s: 1: 1; s: 15: shuff what is the data fo

Php Using PHP to read the TXT file data (words, phonetic transcription and translation) to another TXT file, garbled, what is the reason? Reply to discussion (solution) Of course because the coding is inconsistent. How to solve it?Of course because the coding is incons

Php always fails to query data. what is wrong with function ax ($ que) { If (! $ Connect) { $ Connect = mysql_connect ('localhost', 'axmanage', 'axmanpw '); Mysql_select_db ('dex ', $ connect); // The connection is successful, but the query always fails. $ Query = mysql_query ($ que); // This sentence fails. If

Where is the 1.SESSION information stored? Copy Code code as follows: Session_Start (); $_session[' name ']= ' Marcofly '; ?> Session default is saved to the C:\Windows\Temp directory, but by modifying the Session.save_path value in php.ini You can change the save path of the session. such as: Session.save_path = "D:/wamp/tmp" After executing the code, it will be in the D:/wamp/tm

What type of data is this? Is there a system function split? {"Text": [{"id": "One", "name": "Zhang"},{"id": "+", "name": "Wang"},{"id": "" "," name ":" Li "}]," src ":" en "," Time ": 0} Share to: ------Solution-------------------- $s = ' {"text": [{"id": "One", "name": "Zhang"},{"id": "" "," name ":" Wang "}

What is the difference between a Web service and getting post/get return data?

Why can't I use the prepared mysqli statement in php to query database data (bind parameters or bind results)? the project is in urgent need! The code is as follows: PHPcode lt ;? Php/* use mysqli extension to bind the result * // Create a server connection $ why can't mysql use the mysqli preparation statement in php to query

$result = $User->where ("u_id=". $user _id)->setfield (' Img_url ', $url); if ($result!== false) { Echo ' Data updated successfully! '; }else{ Echo ' hasn't updated any data! '; } When the value of the hash is not changed, when multiple commits are made, The first success, the back is false.

Transaction transaction processing (TRANSACTION) is a logical processing unit formed by the combination of one or more SQL statement sequences . Each statement in a transaction is part of the complete task, and all statements are organized together to accomplish a particular task. When a DBMS is processing a statement in a transaction, it

What type of data is this? Is there a system function split? {"Text": [{"id": "One", "name": "Zhang"},{"id": "+", "name": "Wang"},{"id": "" "," name ":" Li "}]," src ":" en "," Time ": 0} Share to: ------Solution-------------------- $s = ' {"text": [{"id": "One", "name": "Zhang"},{"id": "" "," name ":" Wang "}