In SQL, the DISTINCT keyword is used in the SELECT statement to retrieve unique values from a database table. Any value that has a duplicate will only show up once. SyntaxSELECT DISTINCT "column_name"FROM "table_name";"table_name" is the name of the table where data is stored, and ...
Use the Distinct operator to eliminate duplicate elements from a sequence. Example The following example uses Distinct to select a sequence of the unique cities that have customers. VB Copy Dim cityQuery = _ (From cust In db.Customers _ Select cust.City).Distinct() For Each cityString In...
In fact, a Gartner report highlights that bad data costs companies an average of $12.9 million each year. "When data is stored in different places, it's hard to know if it's accurate. You might see the same information entered repeatedly, leading to duplicate data, which can mess up ...
--步骤1, 将重复PK的记录加载到临时表table_a_temp truncate table table_a_temp ; insert into table_a_temp(pk, other_field) select pk, other_field from table_a a group by pk, other_field having count(*)>1 ; --步骤2, 删除所有重复PK的记录, 这不是去重 --SQL Server 关联delete的写法有...
umayaraja Nov 25th, 2014 hi friends...first sort the value then use delete statement to delete the duplicate records,sort by . delete adjacent duplicate form comparing . Was this answer useful? Yes ReplyRelated Answered QuestionsProvision entry...