The "duplicates" tag concerns detecting and/or dealing with multiple instances of items in collections.
Using LINQ, from a List<int>, how can I retrieve a list that contains entries repeated more than …
linq list duplicate-removalI have the below table with the below records in it create table employee ( EmpId number, EmpName varchar2(10), EmpSSN varchar2(11) ); …
sql sql-server-2005 tsql duplicate-removalMy query: SELECT sites.siteName, sites.siteIP, history.date FROM sites INNER JOIN history ON sites.siteName = history.siteName ORDER …
sql sql-server distinct inner-join duplicate-removalI am cleaning out a database table without a primary key (I know, I know, what were they thinking?). I …
sql duplicate-removalI have to add a unique constraint to an existing table. This is fine except that the table has millions …
sql postgresql duplicate-removal unique-constraint sql-deleteI have the two following data frames (example): df1: name profile type strand A 4.5 1 + B 3.2 1 + C 5.5 1 + D 14.0 1 - E 45.1 1 - …
r dataframe duplicate-removal delete-row corresponding-recordsJust want to remove duplicates. Pool is vector<pair<string, int>> but I seem to miss …
c++ vector duplicate-removal eraseI have the situation: Table1 has a list of companies. Table2 has a list of addresses. Table3 is a N …
postgresql sql-order-by left-join foreign-key-relationship duplicate-removalYes, you can find similar questions numerous times, but: the most elegant solutions posted here, work for SQL Server, but …
sql sybase duplicate-removal sqlanywhereIs there a way of removing record on duplicate key in MySQL? Say we have a record in the database …
mysql key duplicate-removal sql-delete