duplicates

How to prevent duplicate Usernames in php/mysql

风格不统一 提交于 2019-12-01 13:49:51
(This is my first try with php) I have a very basic register page. http://graves-incorporated.com/test_sites/member_test/register/register.php * I just remembered PHP code doesn't show up in the source so here it is: enter code here <?php include('connection.php'); if(isset($_POST['form'])){ if(empty($_POST['username']) || empty($_POST['password']) || empty($_POST['conf_pass']) || empty($_POST['email'])){ echo '<b>Please fill out all fields.</b>'; }elseif($_POST['password'] != $_POST['conf_pass']){ echo '<b>Your Passwords do not match.</b>'; }else{ $url = 'http://graves-incorporated.com/test

Replacing a HashSet Java member

耗尽温柔 提交于 2019-12-01 13:44:21
问题 I have Set of that structure. I do not have duplicates but when I call: set.add(element) -> and there is already exact element I would like the old to be replaced. import java.io.*; public class WordInfo implements Serializable { File plik; Integer wystapienia; public WordInfo(File plik, Integer wystapienia) { this.plik = plik; this.wystapienia = wystapienia; } public String toString() { // if (plik.getAbsolutePath().contains("src") && wystapienia != 0) return plik.getAbsolutePath() + "

Remove Duplicate Cells in a Row

 ̄綄美尐妖づ 提交于 2019-12-01 13:42:00
Just to clarify : I don't want to remove duplicates rows, I want to remove Duplicate Cells within a row So here's a classic address table, and in some row there's duplicate entries I need to remove those entries. Most of what I've seen in VBA is used to remove duplicates values within a column, but I can't find a way to remove duplicate values within a row. Name | Address1 | Address2 | City | Country Peter | 2 foobar street |2 foobar street | Boston | USA And I want it to be like : Name | Address1 | Address2 | City | Country Peter | 2 foobar street | | Boston | USA I've write a macro that will

How to prevent duplicate Usernames in php/mysql

笑着哭i 提交于 2019-12-01 13:01:16
问题 (This is my first try with php) I have a very basic register page. http://graves-incorporated.com/test_sites/member_test/register/register.php * I just remembered PHP code doesn't show up in the source so here it is: enter code here <?php include('connection.php'); if(isset($_POST['form'])){ if(empty($_POST['username']) || empty($_POST['password']) || empty($_POST['conf_pass']) || empty($_POST['email'])){ echo '<b>Please fill out all fields.</b>'; }elseif($_POST['password'] != $_POST['conf

mySQL query to find duplicate row

不想你离开。 提交于 2019-12-01 12:51:43
Exmaple: [empid date bookid] ---------- 1 5/6/2004 8 2 5/6/2004 8 1 5/7/2004 8 1 5/8/2004 6 3 5/8/2004 8 2 5/8/2004 7 In this table,I need to get empid 1 as output..since it has bookid 8 more than once.. thanks in advance.. You can use: SELECT DISTINCT id FROM table GROUP BY empid, bookid HAVING COUNT(*) > 1 But it will give you duplicates. If, for example, you have 1-8,1-8,1-9,1-9 you will get 1,1 as output because empid 1 has duplicate bookid's for two distinct bookid values. You will need to use SELECT DISTINCT to filter out the duplicate empid. SELECT empid from table group by empid having

How can I drop duplicate data in a single column, group-wise in pandas?

别说谁变了你拦得住时间么 提交于 2019-12-01 12:44:37
问题 If the df is grouped by A, B, and C, and looks something like this: A B C D 1 53704 hf 51602 51602 53802 ss 53802 53802 2 12811 hf 54205 hx 50503 I have tried the following, which is similar to something from another post: df.groupby([df['A'], df['B'], df['C']]).drop_duplicates(cols='D') This obviously incorrect as it produces an empty dataframe. I've also tried another variation with drop_duplicates that simply deletes all duplicates from 'D', no matter what group it's in. The output I'm

List of values for duplicate keys in dictionary Python

旧街凉风 提交于 2019-12-01 12:41:57
Apologies in advance if this question has already been explored here - I looked at different answers here but couldn't find what I need. My goal is to create a dictionary like this -- {'a':[10, 9, 10, 10], 'b':[10, 9, 1, 0], 'c':[0, 5, 0, 1], and so on} What I have is multiple dictionaries with duplicate keys (same keys in every other dictionary), something like this {'a':10, 'b': 0, 'c': 2} {'a':7, 'b': 4, 'c': 4} {'a':4, 'b': 5, 'c': 3} I have no way of knowing the number of such dictionaries, or if there are keys continuing up to 'f', or a 'g' in them but I know that the keys are duplicated

MySql UUID duplication BUG

ε祈祈猫儿з 提交于 2019-12-01 12:33:04
There is a bug that I found in MySql 5.5.19. When executing: select uuid(), uuid(); You are getting two equals ids. I run in two this bug when inserted two uuids to my table, I always got same values. Does anyone else run in two this bug? How can I perform insert command that requires two uuids for my keys? Edit : Actually I got wrong they are different in one digit so it was really hard to see c3db913 7 -705e-11e1-ae17-1c6f6531b785 c3db913 f -705e-11e1-ae17-1c6f6531b785 From the docs A UUID is designed as a number that is globally unique in space and time. Since the query is compiled before

Merge two arrays and remove duplicates in Java

烂漫一生 提交于 2019-12-01 12:32:27
I am having trouble removing the duplicates from two arrays that have been merged into one. I have written the following code that merges the arrays, yet I'm not sure how to remove the duplicates from the final array. Assume the arrays are already sorted. public static int[] merge(int[] list1, int[] list2) { int[] result = new int[list1.length + list2.length]; int i = 0; int j = 0; for (int k = 0; k < (list1.length + list2.length); k++) { if (i >= list1.length) { result[k] = list2[j]; j++; } else if (j >= list2.length) { result[k] = list1[i]; i++; } else { if (list1[i] < list2[j]) { result[k]

python: remove duplicate values from dict

女生的网名这么多〃 提交于 2019-12-01 11:41:48
I'm trying to remove duplicate values in my dict but its not working: samples_antibiotics_with_duplicates = {'S00541-09': ['Streptomycin', 'Sulfamethoxazole', 'Trimethoprim', 'Spectinomycin', 'Streptomycin', 'Streptomycin', 'Trimethoprim']} samples_antibiotics = {} for key,value in samples_antibiotics_with_duplicates.iteritems(): if value not in samples_antibiotics.values(): samples_antibiotics[key] = value print samples_antibiotics This prints: {'S00541-09': ['Streptomycin', 'Sulfamethoxazole', 'Trimethoprim', 'Spectinomycin', 'Streptomycin', 'Streptomycin', 'Trimethoprim']} Any help will be