firetide mesh

%type,P_pro_money Innumber) as----declaring variablesV_infors_count INTEGER;----process startsBEGIN----statistics specify the number of product IDsSelectCount (*)Into V_infors_countFrom InforsWHERE pro_id = p_pro_id;-----If the product exists, then execute the UPDATE statement to modify the price of the product, and then submitIF V_infors_count = 1THENUPDATE inforsSET Pro_money = Pro_money * P_pro_moneyWHERE pro_id = p_pro_id;COMMIT;ENDIF;----If an exception occurs, the rollback is performedEXCE

ignores null values instead of participating in the calculation as "0" COUNT (*) counts the number of rows in a table regardless of whether there is a null,count (field name) count the row with data for a particular column ignores null values Max (), Min () max, min values ignore null You can sum a single column, or you can sum a number of columns and omit the null value, and when you sum multiple column operations, the record of the row is ignored if the value of any column in the

Wrote 7, 8 years of C + + code, the first time in the three-wood operator encountered a pit. Pstrvalue = Probebind (pstrvalue)? Parsebind (Pstrvalue): Pstrvalue; The type of the Parsebind return value is not the same as pstrvalue, and it is

The spring particle model is a method to simulate the deformation of an object by Newton's Law of motion. As shown, the model is a grid consisting of a virtual particle of MXN, which is connected to a spring with no mass and no natural length of

Directory Operations New Catalogmkdir (path, permissions, recursive creation) Delete DirectoryRmDir () Move (rename)Rename () Get directory ContentsOpen DirectoryDirectory handle = Opendir ()Read DirectoryFile name = Readdir

With the rise of mobile Internet, more and more people use mobile phones to access the Internet. Open the uc browser and we can see the home page of uc. Or the 360 or Baidu homepage. These pages are made in html5. It seems very difficult, but not at

DebuggingProgramSuddenly, the. x model cannot be loaded ?!After a long time, the root node of the loaded model was faulty. After debugging, it was found that the root node of d3dxloadmeshhierarchyfromx was empty when some models were loaded, and

The ternary operator's functionality is consistent with the "if....else" process statement, which is written in a single line, with a streamlined code and high execution efficiency. Using the ternary operator appropriately in a PHP program can make

In the classes that make up the Microsoft Windows presentation Foundation, those classes in the System.Windows.Media.Media3D namespace are prominent. The purpose of these classes is to enable mainstream Windows® applications to display

1. What is the software version? A: Our Enterprise Edition is divided into LAN version and Internet version. LAN version and the Internet version of the monitoring functions are the same, they are different from the scope of the monitoring of the

#include int main () { int a = ten; int b =; In the C language, the result of the expression is placed in the Register //The return value of the expression is a number (a In C language:The result of an expression is in the

Topic Description Transfer Door solving The question is about the same as the ticket change.High precision is required when calculatingAfter breaking down the decomposition, you just need a high precision multiplication and a high precision

usage is [x Y]=meshgrid (A, b); Meshgrid Where A and B are all one-dimensional arrays Give some examples 1. A=[1 2 3] b=[2 3 4] Then the resulting matrix X and y are all 3*3 matrices. where each row of the x matrix is [1 2 3], the number of rows is

Intersection policy of plane and grid The standard equation of a plane isA x + B y + c Z + D = 0Where (A, B, C) is the unit normal. The value of D is determined by substituting in the known point (PX, Py, PZ) on the plane, namelyD =-(a PX + B py + C

Manualobject Mannualobject Mo; Mo. Begin ("examples/grassblades", renderoperation: ot_triangle_list );For (INT I = 0; I {Mo. Position (-Vec. X, height,-Vec. z );Mo. texturecoord (0, 0 );Mo. Position (VEC. X, height, VEC. z );Mo. texturecoord (1,

A: Preface Beep, please swipe your car. Yesterday saw a good picture sharing network-petals, the picture quality is also good, so the use of Selenium+xpath I took its sister's column under the crawl down, to the picture column name to the folder

PHP List file directory tree A method, you can also determine whether its files are directories, the files in its directory clearly displayed, can help us to understand the directory of the situation, you can quickly see how many directories in this

Don't know the result why is "excessive"? Ask the friend to know the answer under Reply content: Don't know the result why is "excessive"? Ask the friend to know the answer under By modifying the values, combining the results to analyze

Book review: Look at the official introduction, need 2 wireless network card support, one should be used to affect the user and normal hotspot connection, that is, Dos attack, and another can simulate a fake AP waiting for user access, this attack

The solution method of spring particle model includes explicit Euler integral and implicit Euler integral method, in which the explicit Euler integral solution is fast, but the integral step is small, the two visual frames need multiple integrals,