alphanumeric

How to use alphanumeric fields with BETWEEN clause in Mysql?

独自空忆成欢 提交于 2019-12-02 18:48:22
问题 I have a table that contain a field names as mgrs, the value that stored in mgrs fields is like '42SWC227821555' may contain more charachters, and may contain lower case letters. So now i want to search records between two mgrs, so how can i do that? can i convert mgrs value to integer first and then use in between clause? 回答1: Instead of BETWEEN clause use STRCMP(expr1, expr2) function for string comparison operations: WHERE STRCMP(mgrs, '42SWC227821555') >= 0 AND STRCMP(mgrs,

How to use alphanumeric fields with BETWEEN clause in Mysql?

吃可爱长大的小学妹 提交于 2019-12-02 09:26:48
I have a table that contain a field names as mgrs, the value that stored in mgrs fields is like '42SWC227821555' may contain more charachters, and may contain lower case letters. So now i want to search records between two mgrs, so how can i do that? can i convert mgrs value to integer first and then use in between clause? Instead of BETWEEN clause use STRCMP(expr1, expr2) function for string comparison operations: WHERE STRCMP(mgrs, '42SWC227821555') >= 0 AND STRCMP(mgrs, '42SWC227821570') <= 0 I will list some steps, instead of complete answer. Remove all alphabets from you value, means you

alphanumeric regular expression in R

我是研究僧i 提交于 2019-12-02 05:20:12
I am trying to use [:alnum:] as explained on ?regex Anyone knows why grepl("^([a-zA-Z0-9])+([;])", x="dj5sads;adsa") returns TRUE, but grepl("^([:alnum:])+([;])", x="dj5sads;adsa") returns FALSE? [:alnum:] is only the name of the class. As you want to put this named class into a character class, you have to enclose it with just another pair of [] : [[:alnum:]] In your example it'd be grepl("^([[:alnum:]])+([;])", x="dj5sads;adsa") //Output: TRUE demo @ ideone what you want is grepl("^([[:alnum:]])+([;])", x="dj5sads;adsa") remember we put the SearchPattern 来源: https://stackoverflow.com

Increasing Alphanumeric value in user defined function

柔情痞子 提交于 2019-12-02 01:43:14
I'm trying to code a user defined function under SQL Server 2005 that will increase integer part of alphanumeric value by one. For example, uf_AlphanumericIncrease ('A000299') should return 'A000300'. Here's what I've done so far; ALTER FUNCTION uf_AlphaNumericIncrement ( @ID varchar(10) ) RETURNS VARCHAR(10) AS BEGIN DECLARE @RES varchar(10); IF SUBSTRING(@ID,LEN(@ID),1)='9' SET @RES=SUBSTRING(@ID,1,LEN(@ID)-2)+CAST (CAST(SUBSTRING(@ID,LEN(@ID)-1,1) AS smallint)+1 AS VARCHAR(10))+'0'; ELSE SET @RES=SUBSTRING(@ID,1,LEN(@ID)-1)+CAST (CAST(SUBSTRING(@ID,LEN(@ID),1) AS smallint)+1 AS VARCHAR(10))

How to sort an alphanumeric array in ruby

时间秒杀一切 提交于 2019-12-01 21:33:13
How I can sort array data alphanumerically in ruby? Suppose my array is a = [test_0_1, test_0_2, test_0_3, test_0_4, test_0_5, test_0_6, test_0_7, test_0_8, test_0_9, test_1_0, test_1_1, test_1_2, test_1_3, test_1_4, test_1_5, test_1_6, test_1_7, test_1_8, test_1_9, test_1_10, test_1_11, test_1_12, test_1_13, test_1_14, ...........test_1_121...............] I want my output to be: . . . test_1_121 . . . test_1_14 test_1_13 test_1_12 test_1_11 test_1_10 test_1_9 test_1_8 test_1_7 test_1_6 test_1_5 test_1_4 test_1_3 test_1_2 test_1_1 test_0_10 test_0_9 test_0_8 test_0_7 test_0_6 test_0_5 test_0

Sorting Alphanumeric field in SQL CE (Compact Edition) version 3.5

我只是一个虾纸丫 提交于 2019-12-01 20:36:56
Sorting Alphanumeric field in SQL CE (Compact Edition) version 3.5 TreeNumber is a nvarchar field with a mix of numbers and strings for the values. I want to sort these records so that the records that contain alpha characters are at the top and the rest are sorted in numeric order. I want something similar to the following query which works in SQL Server: SELECT * FROM Tree ORDER BY (CASE WHEN TreeNumber LIKE '%[a-z]%' THEN 0 ELSE TreeNumber END), TreeNumber The above query doesn't seem to work because the [] range is not supported in CE. Another solution which works with SQL Server but doesn

Removing spaces and anything that is not alphanumeric

家住魔仙堡 提交于 2019-12-01 17:18:13
I'm trying to remove everything that is not alphanumeric, or is a space with _: $filename = preg_replace("([^a-zA-Z0-9]|^\s)", "_", $filename); What am I doing wrong here, it doesn't seem to work. I've tried several regex combinations...(and I'm generally not very bright). Try this: $filename = preg_replace("/[^a-zA-Z0-9 ]/", "_", $filename); $filename = preg_replace('~[\W\s]~', '_', $filename); If I understand your question correctly, you want to replace any space (\s) or non-alphanumerical (\W) character with a '_'. This should do fine. Note the \W is uppercase, as opposed to lowercase \w

How to increment alphanumeric number in android? [closed]

橙三吉。 提交于 2019-12-01 13:39:20
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last year . I'm new to android coding practice ABB20180001 Suppose this as my first id, and i wish to auto-increment this by 1 using shared preferences and use as employee id. like ABB20180002, ABB20180003, ABB20180004 etc. 回答1: You can't increment alphanumeric values directly. if want to do so

Sorting VARCHAR column with alphanumeric entries

不羁岁月 提交于 2019-11-30 20:51:17
I am using SQL Server, the column is a VARCHAR(50) and I want to sort it like this: 1A 1B 2 2 3 4A 4B 4C 5A 5B 5C 5N 14 Draft 21 22A 22B 23A 23B 23C 23D 23E 25 26 FR01584 MISC What I have so far is: Select * From viewASD ORDER BY Case When IsNumeric(LEFT(asdNumNew,1)) = 1 Then CASE When IsNumeric(asdNumNew) = 1 Then Right(Replicate('0',20) + asdNumNew + '0', 20) Else Right(Replicate('0',20) + asdNumNew, 20) END When IsNumeric(LEFT(asdNumNew,1)) = 0 Then Left(asdNumNew + Replicate('',21), 20) End But this SQL statement puts '14 Draft' right after '26'. Could someone help? Thanks Your WHERE

Removing non alphanumeric characters in a batch variable

旧城冷巷雨未停 提交于 2019-11-30 16:06:21
问题 In batch, how would I remove all non alphanumeric (a-z,A-Z,0-9,_) characters from a variable? I'm pretty sure I need to use findstr and a regex. 回答1: The solutionof MC ND works, but it's really slow (Needs ~1second for the small test sample). This is caused by the echo "!_buf!"|findstr ... construct, as for each character the pipe creates two instances of cmd.exe and starts findstr . But this can be solved also with pure batch. Each character is tested if it is in the map variable :test set "