Cocos data article [3.4] (6)--sqlite3 database basic usage

Tags: Cocos database sqliteNaggingIn cocos2d-x, simple data storage, you can use Userdefault. So how do you store large, irregular data? We can use the SQLite database to store data. SQLite is a very extensive embedded database , it has a small,━9.14 Database connection Management ━web section

Tags: development Framework Permission System Workflow━. NET rapid Information System development framework9.14 Database connection Management-web section   We can often see a lot of software directly put the━9.14 Database connection Management ━web section━. NET rapid Information System development framework9.14 Database connection Management-web section   We can often see a lot of software directly put the database connection string in the software execution directory in the

sql2-Sub-query, join query

Label:SQL Common advanced queries include: Join queries, subqueries.Sub-query: Useflowershopdb--subquery: Use another SELECT statement as a condition or data source in a SELECT statement.--Query BLOCK: A SELECT clause.--nested queries: Nesting

Practical T-SQL code

Label:1. Based on the date of birth, the current age isDECLARE @birth datetimeset @birth = ' 1990-01-01 ' SELECT (CAST (CONVERT (char (8), GETDATE (),) as int)-CAST (CONVERT (char ( 8), @birth, as int))/10000(in continuous update)Practical T-SQL

A brief introduction to SQL Blind attack

Label:1 Introduction1.1 General SQL Injection Technology OverviewThere is no standard definition of SQL injection technology, and the Microsoft China Technology Center is described in 2 ways [1]:(1) Script-injected attacks(2) Malicious user input

Coding Theano under remote ubuntu server from local mac (on local Mac machine, write, run, debug, see-Theano code on remote Ubuntu)

Label:I am a wonderful, recently tinker a set on the MAC coding remote Ubuntu on the Theano code of East, in order to benefit posterity.Overview: It's my programming environment and network environmentI expect to be able to write, run, debug, view

Javaweb file upload and download & Mail Technology (18)

Label:Introduction to File Upload Recently found that few write a brief introduction, saying that they do not have time to write, may be to persuade themselves. In short, can write more than write. There is a persistent problem, the quality

Use VBA to find the number of columns in Excel that are not empty for the first time in a row of columns and the last column is not empty

Label:Yesterday, colleagues had a need to know the month of the first sale of each item, and the month of the last sale. I want to use what Excel function to solve, but found a half-day did not find the right, and finally through the VBA to solve it.

DUP and DUP2 functions

Label:The following two functions can be used to copy an existing file descriptor:#include <unistd.h>int dup (int filedes), int dup2 (int filedes,int filedes2);

Canvas---Canvas drawing, dashed line, guides, line color, line width, integrated enhanced version

Tags: canvas javascript HTML Web source code  Use canvas to implement the paint program.This update mainly realizes the function:Selection of dashed solid lines, guides, line color selection, line width selectionFurther collation of the code,

Enter a string representing an integer to convert the string to an integer and output. For example, the input string "345", the output integer 345.

Label: Method One: Using the function atoi (const char *nptr) in the C function library, a line of code can solve the problem, but this is not the question of the solution to the idea; Method Two: If we enter the "345", from left to

Inf-inf Nam

Label: Infinity and NaNIEEE 754 floating point numbers can represent positive or negative infinity, and NaN (not a number). These three values arise from calculations whose

RedHat 6.5 and upgrade to the latest version

Tags: nginx installation, Nginx upgrade1 NginxBasic Knowledge1.1 NginxIntroductionNginx ("Engine x") is a high-performance HTTP and reverse proxy server, also a IMAP/POP3/SMTP proxy server. Currently the official Nginx does not support Windows, can

From 30 years to 35 years: accumulate some thickness for your life

Label:all the questions you have never imagined will come to you with the passing of time, and all your ever-dashing, well-being, will also make you bear the costs that seem to have been doomed over time. In this world, "the only thing unstoppable

Class (2)-Destructors and garbage collection

Label:Once a class is defined, we can new any number of objects. At this point, the memory allocation on the managed heap and stack is generated, and the heap will open up a new space to store the class object, and the stack simply stores the

Notes on similar issues with token=%1$s

Tags: %1 $ s indicates that the first replacement location is placed as a string type such as System.out.println (String.Format ("%1 $ s Hello%2$s", "XXX", "!")); The output is "XXX Hello!" String.Format after the first argument is an expression,

LA 2965 Jurassic remains

Label:  It's a violent problem, but there are a lot of tricks and details.This question:1, familiar with the bitwise operator, feel different or operation of the force lattice has a higher level2, you can use a number of 2 to represent the

leetcode#44 Wildcard Matching

Label:Original title AddressA very technical problem, although the essence is still search + backtracking, but the key is how to deal with the redundant in the pattern String *, if the bad processing time out.The basic search + backtracking

Try the development, deployment of Office 2003 VSTO

Label:Background: A year ago, a project needs to use Excel for data entry, considering that many users or Xp+office 2003, so the development of the time directly using the Excel 2003 version of VBA development. Perhaps a lot of people will say, Win10

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