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First we have a table query result as follows:Now we want to put the contents of the User_name column in a field:A row of SQL statements resolves the issue:Select STUFF ((select ', ' +convert (VARCHAR, user_name) from Te_user for XML PATH (")), 1, 1, ') as UserNameExplain the above statement:1, first stuff function in the above statement is to remove the concatenation of the front of the string commaThe use of the stuff function is probably stuff (param1, startIndex, Length, param2), which mea

Server SELECT (case when A.colorder=1 then D.name else "end") Table name, A.colorder field ordinal number, A.name Field Name, (Case when ColumnProperty (A.id,a.name, ' isidentity ') =1 then ' √ ' Else ' "End ') identifies, (SELECT count (*) From sysobjects WHERE (name in (SELECT name From sysindexes WHERE (id = a.id) and (Indid in (SELECT indid From Sysindexkeys WHERE (id = a.id) and (Colid in (SELECT colid From syscolumns WHERE (id =

, but they cannot accept a very slow response speed. This kind of application has played a perfect lever for the increasing popularity of Ajax. With the increase in user usage frequency, more Ajax components should enhance the user experience. However, for Web applications, it is meaningless to use JavaScript to implement everything. AJAX can only provide significant help for specific environments. Before the emergence of Ajax, web applications have been able to work well. Currently, Ajax still

PHP _ retain two decimal places and rounding _ keep two decimal places without rounding php keep two decimal places and rounding $ num123213.666666; echosprintf (%. 2f, $ num); php retains two decimal places without rounding $ num123213.666666; echosprintf (%. 2f, substr (sprintf (%. 3f, $ PHP _ keep two decimal

Tags: no character format nbsp sysdate start Ceil Special examplesAbout several Oracle functions that handle the number of decimal places ()1. Rounding of several decimalsSelect Round (1.2345, 3) from dual;Results: 1.2352. Reserved two decimal places, onlySelect Trunc (1.2345, 2) from dual;Results: 1.23 Select Trunc (1.2399, 2) from dual; Results: 1.233. Take an integerReturns the largest integer greater th

How to solve multiple decimal places in Javascript decimal operations? Multiple decimal places in js decimal operations Share with you an interesting test: 0.1 + 0.2 = 0.3 // falseSuddenly depressed, okay! 0.1 + 0.2 changed to: 0.30000000000000004Another 2.4/0.8 => 2.9999999999999996 cannot be converted into an integer (2.4*100)/(0.8*100)10.22 now I want to subtract the result value of 0.11 and then there w

Tags: style class blog Code java HTTPabout several Oracle functions that handle the number of decimal places ()1. Take a few decimals roundedSelect round(1.2345,3) fromdual; Results:1.2352. Keep two decimal places, onlySelectTrunc1.2345,2) fromdual; Results:1.23SelectTrunc1.2399,2) fromdual; Results:1.233take an integer to return the largest integer greater than or equal to x: SQL> SelectCeil (23.33

Php_ keep two decimal places and round _ Keep two decimal places and do not round php reserved Two decimal places and rounded $num = 123213.666666;echo sprintf ("%.2f", $num); PHP retains two decimal places and does not round $num = 123213.666666;echo sprintf ("%.2f", substr (sprintf ("%.3f", $num), 0,-2)); ph

Conversion between decimal places and binary decimal places1. Convert binary to decimalThe basic practice of converting a binary number into a decimal number is to first write the binary number as an expansion of the weighting coefficient, and then sum the values according to the decimal addition Rules. This method is called "adding weights.Example 1105Converts 110.11 of the binary number to a decimal number.Ii. Convert decimal number to binary number

PHP _ retain two decimal places and rounding _ keep two decimal places without rounding php keep two decimal places and rounding $ num123213.666666; echosprintf (%. 2f, $ num); php retains two decimal places without rounding $ num123213.666666; echosprintf (%. 2f, substr (sprintf (%. PHP _ retain two decimal

JQuery allows only numbers and decimal places. jquery decimal places This example describes how jQuery allows only numbers and decimal places. We will share this with you for your reference. The details are as follows:

JavaDecimalFormat dcmfmt = new DecimalFormat ("0.00");Double db = 12333.353;System.out.println (Dcmfmt.format (db));JsJava, medium double precision double control retains two decimal places, JS controls two decimal places

Php_ keep two decimal places and round _ Keep two decimal places and do not round

Method 1: Use Math.Round to calculate the number format that is returned here.float price=89.89;int itemNum=3;float totalPrice=price*itemNum;float num=(float)(Math.round(totalPrice*100)/100);//如果要求精确4位就*10000然后/10000Method 2: Return with DecimalFormat in string format. The class is fully encapsulated in decimal. Like the% number, thousand bits, decimal precision. Scientific calculation.float price=1.2;DecimalFormat decimalFormat=new DecimalFormat(".00");//构造方法的字符格式这里如果小数不足2位,会以0补足.String p=decim

Java rounded to reserved decimal places, java rounded to decimal places // Method 1: Double f = 3.1516; BigDecimal B = new BigDecimal (f ); Double f1 = B. setScale (2, BigDecimal. ROUND_HALF_UP). doubleValue (); // Method 2: New java. text. DecimalFormat ("#. 00"). format (3.1415926 ); // #. 00 indicates two decimal places #. 0000 four decimal