duplicates

问题 I want to remove all the repeated characters from a string. For example, if I have: "abcdabef" I want the result to be "cdef" I have tried with loops, but it's getting me confusing. Can anyone just tell me how to do this? Here's what I've tried so far: #include<stdio.h> #include<string.h> main() { char s[20],ch,*p; int i,j,k,cnt; puts("enter string:"); gets(s); for(i=0;s[i];i++) { ch=s[i]; for(cnt=0,j=0;s[j];j++) { if(ch==s[j]) cnt++; if(cnt>1) { for(k=0;s[k]==ch;k++) { strcpy(s+k,s+k+1); if

问题 I have four models: articles , authors and tags . Each article can have many authors, and also can have many tags. So my DB will have the following tables: `article` `article_author` `author` `article_tag` `tags` Here in MySQL: DROP TABLE IF EXISTS article_tag; DROP TABLE IF EXISTS article_author; DROP TABLE IF EXISTS author; DROP TABLE IF EXISTS tag; DROP TABLE IF EXISTS article; CREATE TABLE IF NOT EXISTS author ( id INT(11) NOT NULL AUTO_INCREMENT, name VARCHAR(255), PRIMARY KEY (id) );

问题 I have four models: articles , authors and tags . Each article can have many authors, and also can have many tags. So my DB will have the following tables: `article` `article_author` `author` `article_tag` `tags` Here in MySQL: DROP TABLE IF EXISTS article_tag; DROP TABLE IF EXISTS article_author; DROP TABLE IF EXISTS author; DROP TABLE IF EXISTS tag; DROP TABLE IF EXISTS article; CREATE TABLE IF NOT EXISTS author ( id INT(11) NOT NULL AUTO_INCREMENT, name VARCHAR(255), PRIMARY KEY (id) );

问题 I have four models: articles , authors and tags . Each article can have many authors, and also can have many tags. So my DB will have the following tables: `article` `article_author` `author` `article_tag` `tags` Here in MySQL: DROP TABLE IF EXISTS article_tag; DROP TABLE IF EXISTS article_author; DROP TABLE IF EXISTS author; DROP TABLE IF EXISTS tag; DROP TABLE IF EXISTS article; CREATE TABLE IF NOT EXISTS author ( id INT(11) NOT NULL AUTO_INCREMENT, name VARCHAR(255), PRIMARY KEY (id) );

问题 I have a table of contacts. The table contains a mobile_phone column as well as a home_phone column. I'd like to fetch all duplicate contacts where a duplicate is two contacts sharing a phone number. If contact A's mobile_phone matches contact B's home_phone, this is also a duplicate. Here is an example of three contacts that should match. contact_id|mobile_phone|home_phone|other columns such as email.......|... ------------------------------------------------------------------------- 111

问题 I have a table of contacts. The table contains a mobile_phone column as well as a home_phone column. I'd like to fetch all duplicate contacts where a duplicate is two contacts sharing a phone number. If contact A's mobile_phone matches contact B's home_phone, this is also a duplicate. Here is an example of three contacts that should match. contact_id|mobile_phone|home_phone|other columns such as email.......|... ------------------------------------------------------------------------- 111

问题 I have a table of contacts. The table contains a mobile_phone column as well as a home_phone column. I'd like to fetch all duplicate contacts where a duplicate is two contacts sharing a phone number. If contact A's mobile_phone matches contact B's home_phone, this is also a duplicate. Here is an example of three contacts that should match. contact_id|mobile_phone|home_phone|other columns such as email.......|... ------------------------------------------------------------------------- 111

问题 I’m using COGNOS 11 and I’m trying to create a report that only returns the duplicate data in a row only. I’ve tried everything in the IBM user guide but not happening for me. Probably a simple solution but it’s been a long day, any help would be appreciated, thank you in advance. 回答1: determine how you want to group the data (this will identify the duplicates) For example, if you wanted to find duplicate items in the same order (maybe on different order lines) based on your data grouping,

问题 I’m using COGNOS 11 and I’m trying to create a report that only returns the duplicate data in a row only. I’ve tried everything in the IBM user guide but not happening for me. Probably a simple solution but it’s been a long day, any help would be appreciated, thank you in advance. 回答1: determine how you want to group the data (this will identify the duplicates) For example, if you wanted to find duplicate items in the same order (maybe on different order lines) based on your data grouping,

问题 I’m using COGNOS 11 and I’m trying to create a report that only returns the duplicate data in a row only. I’ve tried everything in the IBM user guide but not happening for me. Probably a simple solution but it’s been a long day, any help would be appreciated, thank you in advance. 回答1: determine how you want to group the data (this will identify the duplicates) For example, if you wanted to find duplicate items in the same order (maybe on different order lines) based on your data grouping,