remove duplicate words online

') if exists (SELECT * from tempdb. sysobjects where id=object_id (' tempdb. #Tmp1 ')) drop table #Tmp1Select ID as autoid, * into #Tmp1 from adminif exists (SELECT * from tempdb. sysobjects where id=object_id (' tempdb. #Tmp2 ')) drop table #Tmp2Select min (autoid) as autoid into #Tmp2 from #Tmp1 Group by Username,passwordif exists (SELECT * from dbo.sysobjects WHERE id = object_id (N ' admin ') and objectproperty (Id,n ' isusertable ') = 1) Drop tabl E adminSelect Id,username,password to admi

first to third path.#echo $PATH | Cut-d ': '-f 1-3/bin:/usr/bin:/sbin:Take the path variable out, I want to find the first to third, there is a fifth path.echo $PATH | Cut-d ': '-f 1-3,5/bin:/usr/bin:/sbin:/usr/local/binPractical Example: Display only/etc/passwd users and shells#cat/etc/passwd | Cut-d ': '-f 1,7 root:/bin/bashdaemon:/bin/shbin:/bin/shWCThe number of words in the statistics file, how many lines, how many characters.WC syntax[[email pr

The syntax of regular expressions is known for its simplicity and efficiency, but one point I is more complex. There is a recent feature that needs to be removed from the repeated parts of the string, because using the normal traditional kind of comfortable split into an array in one matching way feels a bit inefficient and wasteful, and then thinks of a regular expression to match a duplicate string, The string is replaceall by using string-guided me

and mobile phones. The second is the abbreviation and full name, such as China and the People's Republic of China. The third is Chinese and English, such as computers and PCs, the fourth type is synonyms of various specialized words, such as drug names and academic names. Finally, there may be some online words such as Shenma and what.In the Lucene architecture,

One of the problems in the project last week was to get the value of a column in the DataTable, since retrieving data from a database is grouped by 2 fields, and the column to be obtained is exactly in the two columns of the grouping, so the value of the column is bound to be duplicated, so I think of removing duplicates, With the idea after the online look at some of the methods, mostly traversal, although the function can be achieved, but the effici

When using MySQL, it is sometimes necessary to query for a record that does not duplicate a field, although MySQL provides the DISTINCT keyword to filter out redundant duplicate records to keep only one, but it is often used only to return the number of distinct records, instead of using it to return all values that are not re-recorded. The reason is that distinct can only return its target field, and can n