The configuration of two-level domain name and multi-domain Site directory structure is the default path of storing source code under the installation directory of Nginx html├──bbs└──wwwhtml. BBS for Forum program source code path WWW for home page program source code path put the corresponding program into the above path through http://www.youdomain.com access is the home page http://bbs.yourdomain.com Access to the Forum Other level two domain name analogy. server {Listen 80; Ser
Php source code used to replace javascript variable names and function names. Which of the following code can I recommend? I want to replace the variable name and function name with the traversal method to confuse and protect the source code, I don't know which one can recommend an open-source program using php ------ solution ------------------ why is there no one? the php source code used to replace the j
==_debug_trace_cmh_//print file name, line number
#define TRACE_CMH (FMT,...) \
printf ("%s (%d):" # #fmt, __file__, __line__, # #__VA_ARGS__)
#elif 3==_debug_trace_cmh_//print file name, line number, function name
#define TRACE_CMH (FMT,...) \
printf ("%s (%d)-
#else
#define TRACE_CMH
#endif//_trace_cmh_debug_
/*******************************************************/
These are some of the macros used in this code:1) __va_args__ is a variable parameter macro, this macro is new
A detailed explanation of the Double quotation marks required for table names and Field Names during oracle SQL statement Query
As a beginner in oracle, I believe everyone will encounter this problem,
It is clear that navicat created a table visually, but it cannot be found! Why?
Select * from user;
However, if we add double quotation marks to the user, it will be different!
Select * from "user ";
However,
Cool Disk PC Edition due to the Windows operating system naming restrictions on files and folders.
The following characters cannot appear in file and folder names: (within quotation marks)
‘/’‘?’‘ * ': '
The following characters cannot be named as file or folder names: (within quotation marks)
"Con", "aux", "nul", "PRN", "Com0", "com1", "COM2", "COM3", "COM4", "COM5", "Com6", "Com7", "COM8", "com9", "l
Http://hi.baidu.com/pannijingling/blog/item/28920202733bb7fe09fa936f.html (Java) gets all the file names of a specified type under a folder. and return the available names as appropriate
Check if the specified directory on the disk already has a file with the same name (this code is checking for a. jpg file type), there are three scenarios:* 1: Does not exist, returns the name of the querysuch as: Enter ABC
c.table_name = table to queryQuery the column name of the FOREIGN KEY constraint:SELECT * from User_cons_columns cl where cl.constraint_name = FOREIGN key NameQuery the column name of the key referencing the table:SELECT * from User_cons_columns cl where cl.constraint_name = foreign key reference table key name5. Querying all columns of the table and their propertiesSelect t.*,c.comments from User_tab_columns t,user_col_comments c where t.table_name = C.table_name and T.column_name = c. column_
Tags: on as SQL type Oracle table text class ROMQuery all columns and their properties for a table:Select From User_tab_columns t,user_col_comments Cwhere t.table_name = c.table_name and T.column_name = c.column_name and t.table_name = women;To find the primary key for a table:Find the foreign key of the table (including the name, the table name of the reference table, and the corresponding key name, which are divided into multi-step queries):SELECT * from user_constraints c where c.constrain
User_cons_columns cl where cl.constraint_name = FOREIGN key NameQuery the column name of the key referencing the table:SELECT * from User_cons_columns cl where cl.constraint_name = foreign key reference table key name5. Querying all columns of the table and their propertiesSelect t.*,c.comments from User_tab_columns t,user_col_comments c where t.table_name = C.table_name and T.column_name = c. column_name and t.table_name = table to query6. Table name and number of rows per user table in Oracle
In java, the relationship between file names and class names has the following constraints:
The file name saved in Java must be consistent with the class name.
If there is only one class in the file, the file name must be consistent with the class name
A Java file can contain only one public object file containing more than one class,
The file name must be consistent with the public class name. If
Common array functions in php (5) (obtain the set of key names in the array) and array key namesArray_keys ($ arr, $ search_value, $ strict );
-- Obtains the set of key names in the array.
// The array to be retrieved in parameter 1; the default value of the key to be retrieved in parameter 2 is NULL; and the default value of parameter 3 is false if it is strictly compared (=. Parameter 3 is added in php5
function within the function to be investigated and input a parameter, arguments. callee.Copy codeThe Code is as follows:Function ee (){// ++Var fnname = getFnName (arguments. callee)// ++Alert (fnname)};Ee ();
Instance 3:
Copy codeThe Code is as follows:Function getFuncName (_ callee){Var _ text = _ callee. toString ();Var _ scriptArr = document. scripts;For (var I = 0; I {Var _ start = _ scriptArr [I]. text. indexOf (_ text );If (_ start! =-1){If (/^ function \ s * \ (. * \). * \ r \ n/. test
Php obtains the summary of root domain names, and php obtains the summary of domain names.
The examples in this article summarize how php obtains the root domain name and share it with you for your reference. The specific implementation method is as follows:
If you only get the domain name currently accessing your page, you only need to use the HTTP_HOST function in php. If you want to extract the url root
to avoid the use of reserved words", because the existence of illegal identities should not be facilitated:
First of all, there is a technology-independent aspect: At some point, "actually use the reserved word" will become gossip, right? I've seen a lot of this kind of situation. Since we all know not to use reserved words, why bother?
DBAs or other people who are accustomed to command line, write large amounts of SQL, and occasionally have to pay attention to the field escape, very a
inti,j; - for(i=0; i)Wuyi { the for(j=0;j4; j + +) - { Wu if(s[i].score[j] -) - { Aboutprintf"\n%s failed:", s[i].name); $printf"\nscores:"); - for(j=0;j4; j + +) -printf"%d\t", S[i].score[j]); - Break; A } + } the } -}struct type and Int,char, array and other basic types, is also a C language data type, but this is a custom data type, we can be based on the requirements of various ba
One, configuring DNS and search DomainsSpecially configured DNS The file is/etc/resolv.conf, and we can ifcfg-eth0 the NIC configuration and other configuration files specified in the.Demo Sample:[Email protected] desktop]# cat/etc/resolv.confSearch example.comNameServer 192.168.0.254[Email protected] desktop]#Second, configure host name[Email protected] desktop]# cat/etc/sysconfig/networkNetworking=yesHostname=instructor.example.comNisdomain=notexample[Email protected] desktop]#Third, configure
2.1 obtain the names of all tables in the database.
Sample Data:
Statement:
Select T. Name 'table name' from sysobjects t where objectproperty (T. ID,N 'isusertable') = 1
Or use select name from sysobjects where type = 'U'
Execution result:
2.2 obtain the names of all fields in all tables
Statement:
Select distinct C. Name 'field name'From sysobjectsT, syscolumns CWhere T. ID = C. IDAndObjectproperty (T. I
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