Show all files in the directory The code is as follows:Copy code $ Dir = dirname (_ FILE _). "/../www.111cn.net/"; // enter another path here// PHP traverses all files in the folder$ Handle = opendir ($ dir .".");// Define an array used to store file names$ Array_file = array ();While (false! ==( $ File = readdir ($ handle ))){If ($ file!
In fact, we only use the show usage in the mysql tutorial. The simple operation in mysql is as follows:
Show table
In this way, all the tables are displayed, but they are different in the php tutorial. Let's look at the following code:
$ Server = 'localhost ';
$ User = 'root ';
$ Pass = '';
$ Dbname = 'dayanmei _ com ';
$ Conn = mysql_connect ($ server, $ user, $ pass );
If (! $ Conn) die ("database tutorial system connection failed! ");
Mysq
In fact, we used only the MySQL tutorial show usage in fact one, in the MySQL simple operation as follows
Show Table
This will show all the tables, but in the PHP tutorial, we'll look at the following code
$server = ' localhost ';
$user = ' root ';
$pass = ';
$dbname = ' dayanmei_com ';
$conn = mysql_connect ($server, $user, $pass);
if (! $conn) Die ("Database tutorial system Connection failed!") ");
mysql_select_db ($dbname) or Di
Linux/unix reads all file names under the specified directory call the system function Opendir () and readdir to traverse all the files under a specified directory under Linux/unix and output the file name. The implementation code is as follows:
*
author:acb0y
FileName:main.cpp
Create time:2011 August 1 0:41:18
version:v1.0
* * *
#include
S (Sno,sname,sdd,sage)Sno,sname,sdd,sageEach representative of the school number, learningMember's name, affiliation, student's ageC (Cno,cname)Cno,cnameRepresent the course number, the course name, respectivelySC (Sno,cno,score)Sno,cno,scoreRepresenting the school number,of the ElectiveCourse number, learning scoreThe data for the three tables are as follows:Problem:Use standard SQL nested statements to query the name and affiliation of the student taking a
// Obtain all field names BOOL GetFields (CACCADO ado) {CString SQL = _ T ("SELECT TOP 1 * FROM tableName"); ado. openRecordset (SQL); ADODB: _ RecordsetPtr rs = ado. getRecordsetPtr (); UINT64 colnum = rs-> GetFields ()-> Count; CString fieldname = _ T (""); for (long I = 0; I
***
This article is from the "walker" blog, please be sure to keep this source http://walkerqt.blog.51cto.com/1310630/12814
nsarray*familynames=[[nsarrayalloc]initwitharray:[uifontfamilynames]]; nsarray*fontnames;nsintegerindfamily,indfont ;for (indfamily=0;indfamily Get all font names for iOS
Using unityengine;using system.collections;using system.collections.generic;using System.IO;Else{getobjectnametoarrayvoid Start () {//textasset[] texts = loadasset Unity3d returns all file names under this path according to the directory path under the specified assets
To display the table name of a specified database in mysql, the method is very simple. mysql provides a showtables command, which returns a data. Let's take a look at my details.
To display a table name of a specified database in mysql, the method is very simple. mysql provides a show tables command, which returns a piece of data. Let's take a look at my details.
To display a table name of a specified database in mysql, the method is simple. mysql provides a show tables command, which ret
Today in the image training to find the need to put a lot of pictures to process and then read into the classifier, originally written in C + +, the results found and will not, so I use back to my favorite C #, the result is great.The code below, simple and rude, more beautiful than the online C + + syntaxusingSystem;usingSystem.IO;namespaceconsoleapplication{classProgram {Static voidMain (string[] args) { Try { string[] Txtfiles = Directory.GetFiles ("F:\\ve
#include #include std::vectorchar* dirname){DIR *dp;structdirent* dirp;std::vectorif((dp = opendir(dirname)) == NULL){printf("this dir maybe not exist");}while((dirp = readdir(dp)) != NULL){filename_vector.push_back(dirp->d_name);}closedir(dp);returnfilename_vector;}Get all file names under a directory in Windows
1.for in loop and using the hasOwnProperty method1 varJsonObject1 = {2"Name": "Xiaoming",3"Age": 294 },5 varKEYS1 = [];6 for(varP1inchJsonObject1) {7 if(Jsonobject1.hasownproperty (p1))8 Keys1.push (p1);9 }Tenalert (KEYS1);If you do not use hasOwnProperty, adding your own attributes to object will also output1Object.prototype.test = "I am Test";2 varJsonobject = {3"Name": "Xiaoming",4"Age": 295 },6Keys = [];7 for(varPinchjsonobject)8 Keys.pus
/*dynamically change the column name of a table to lowercase*/SelectConcat_ws ("','ALTER TABLE', A.table_name,'Modify',Lower(A.column_name),' ', A.column_type, Case whenA.is_nullable= 'NO' Then 'Not null' Else NULL End, Case whenA.column_default is NULL Then NULL whenA.column_default= "' Then 'default" '" whenA.column_default is not NULL andA.data_typeinch('bigint','int','decimal') ThenConcat_ws ("','default', A.column_default) whenA.column_default is not N
Mysql returns the names of all tables in a database, and the column name data type remarks bitsCN. comdesc table name;
Show columns from table name;
Describe table name;
Show create table name;
Use information_schema
Select * from columns where table_name = 'Table name ';
By the way:
Show databases;
You can also
Use information_schema
Select table_schema, table_name from tables where table_schema = 'da
Note: Source Network
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> -- ========================================================== ============================== -- Lists All SQL Server tables, field names, primary keys, types, lengths, decimal places, and other information. -- Run in the query analyzer. -- ========================================
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