unspsc values

Check whether a table is locked in--oracle to see if the table is lockedSELECT/*+ rule*/A.sid, B.owner, object_name, object_typeFrom V$lock A, all_objects bWHERE TYPE = ' TM 'and a.id1 = b.object_id;--so you can kill it.SELECT sid,serial# from v$session WHERE sid = 1027;Alter system kill session ' 1027,14272 ';Today, when I was doing the project, I encountered a small problem with Oracle: ORA-00913: Too many values. Now has been solved, although the p

Label:The MySQL UPDATE statement is simple, updating one field of multiple data with the same value, which is generally the case: UPDATE table_name SET field = ' value ' WHERE condition; To update multiple data to different values, you can: foreach ($display _order as $id + $ordinal) { $sql = "UPDATE categories SET Display_order = $ordinal WHERE id = $id "; mysql_query ($sql); } Such a strip, although poor performance, but also easy to

Using the top or PS command will output pri/pr,NI,%ni/%nice These three indicator values, what exactly is this thing? The approximate explanation is as follows:　　PRI : Process priority, which represents the priority that the process can be executed, the smaller the value, the higher the priority, and the sooner it is executed;　　NI : Process Nice value, which represents the priority value of this process;　　%nice : The percentage of CPU occupied by the

function, the return value of this function is None deftest01 ():Passdeftest02 ():return0deftest03 ():return3,'Hello',['Amy','Bob'],{'name':'Alex',' Age': 21}t1=test01 () T2=test02 () T3=test03 ()Print('From test01 return is [%s]:'%type (t1), T1)Print('From test02 return is [%s]:'%type (t2), T2)Print('From test03 return is [%s]:'%type (t3), T3)#Output:#From test01 return is [#From test02 return is [#From test03 return was [View CodeSummarize: Number of return

Phper may all know the use of lists, simply by assigning values to multiple variables through an array in an expression test: $values = Array (' value1 ', ' value2 ');$list ($v 1, $v 2) = $values; Does it feel convenient? In PHP 7.1, it can be more convenient: [$v 1, $v 2] = [' foo ', ' Bar ']; This is not the most empowering, in PHP 7.1 We can also specify k

A bar chart is created in Excel2003 to indicate positive values, which are displayed in different colors. How do I do that? directly set up the chart, the color is the same, I will take time to explain some of the following. ① to fill each negative bar in turn, the method can be, but not good enough, too time-consuming. We check the data series format interface to represent negative values in c

In C + +, the value of exchanging two variables is usually the first reaction is the following code:{Temp=a;a=b;b=temp}But does the topic require temporary variable temp to be used? Maybe you need to think about it for a while. But there are also solutions:{ b=a+b; a=b-a; B=b-a;}This is true if the values of a and B are small, but the a+b is too large to overflow, so it is not an optimal solution. The best approach is to use XOR:{A ^= bb ^=aa

, return "undefined" and "null" strings . This is easy to use wrong.Alert (String (undefined)); "Undefined"Alert (String (null)); //nullThis estimate is just a special judgment in the constructor, meaningless.There is a common denominator between false values and Null values, which is as the conditional branch of if, it is treated as false; Apply "!" True after Operation。The special definition of the Boolea

1. Create the table, the storage engine is MyISAM, and use the MD5 function to create a hash value for the large text field blob CREATE TABLE t2 (ID varchar, content blob, Hash_value varchar) engine=myisam default Charset=utf8; 2. Inserting data INSERT into T2 values (1, repeat (' world1 '), MD5 (content)); INSERT into T2 values (2, repeat (' world2 ',), MD5 (content)); INSERT into T2

SQL uses three-valued predicate logic, so the result returned by a logical expression can be true, false, or unknown, and returning true in the three-value logic is not exactly the same as not returning false.SQL handling of query filtering conditions: Accept Ture deny false and unknownSQL handling of CHECK constraints: Accept FALSE deny TRUE and UNKnown the subtlety of unknown is when it is reversed results are still unknown , The expression (Null=null) that compares tw

Tags: style using strong SP data on problem EF2014-10-14 14:53:25target : Identify and use null valuesanti-pattern : null value as normal value, and vice versa1. Use NULL in an expression:Null values are not the same as empty strings, and null values participate in any addition, subtraction, multiplication, and other operations, and the result is null;Null values

Asp.net| page Introduction Asp. NET provides an excellent event-driven programming model that allows developers to simplify the overall design of the application, but this also creates some of its inherent problems, for example, using the traditional ASP, we can easily deliver values between pages by using the Post method, the same thing, The asp.net of the event-driven programming model is not so easy, of course, we still have some ways to do the sam

Problem Description: Eclipse in debug mode does not automatically display the value of a variable when the mouse moves over itSolution: Click Eclipse's window->preferences->java->editor->hovers, tick variable Values, (if combined hover has selected, Cancel it), then click Apply and the last point is OK.Sometimes do not need to tick variable values can also see the value of variables, so check the selection

At the beginning you use this methodint tmp;tmp = A;a = B;b = tmp;Then you know the modular programming, you know this is not good, so you start to use the function.void swap (int *a, int *b); {int tmp;tmp = *a;*a = *b;*b =tmp;} I'm not going to write a function down here.With the C language learning, later you find that the following code can also complete the value of two variables to exchange anyx = x +y;y = x-y;x = XY;Then one day, you find that your code does not always work correctly, beca

The optional value (Optional value) has two states 1. It has a value of 2. It has no valueOptional type is a new concept in SwiftThe above serverresponsecode is an int? type, the above code represents two different states of ServerresponsecodeIt is especially useful when you are doing something that is not deterministic, such as when trying to turn a string into a number:If the conversion succeeds, there is a value of 123 in the Convertednumber, and if the conversion fails, the nil value is stor

Before learning C #, is completely in the work of learning, some of the bottom of the more in-depth truth is not very clear. Now that you have learned Java, it is confusing to pass a value to a Java parameter, not a reference (pointer), not often in C # to pass a reference to a function? Even C # has a fairly simple ref, out parameter, plainly quoted.After some exploration, the conclusion shows that in Java I don't care whether you are a value or a reference, you just have to remember that the o

PHP determines whether an array of key values exists, using empty or isset or array_key_existsPurpose of this articleThe first few days of work, it is necessary to frequently judge the existence of the key values in the array, initially using the "!empty ($arr [' key '])" to determine that this is more comfortable to read, but the written code can not pass the Unit test (unit test is good). Troubleshooting

Recently, I read the C code written by a new employee, Xiao Liu, and found that it was not very familiar with the assignment of struct variables. For two struct variables of the same type, he takes the form of directly assigning values to member variables individually. The following code example:As shown in the code above, TEMPLOYEEINFOSRC and temployeeinfodest are two types of struct variables with the same type, and the individual member variables i

();2. Request.QueryString: Get the Address bar parameters (and data submitted in get mode)JS file code, as follows:(1). aspx page code$ (document). Ready (function () {Getjosnresourcebaselist ();}(2). Controller file to get the parameters in the JS method (Getjosnresourcebaselist method under Resourcebasecontroller)request.querystring["param1"];request.querystring["param2"];request.querystring["Param3"];3. Dictionary(1) Assigning values to the con

In the writing of HTML and CSS, we will give some tags to some of the class name, but in the writing of JS may also be manipulated through the Cssname CSS style, if only the usual element.classname = "value"; Then the previous definition of the class will be empty, CSS style will be affected, so in JS if there is a fine-tuning CSS, try to use Element.style to change. But if you really use Element.classname = "value", then you can also implement a tag in JS to add multiple class