How to delete duplicate rows from table from DbVisualiser - sql

Question

I have a table called ORG_MAP, it contained 200 records, I executed a query to copy those 200 records to other table called ORG_MAP_1 (duplicate table of ORG_MAP), but what happened was the same 200 records got inserted into the same ORG_MAP table.
Now I want to remove those duplicated records. I don't know how to do that.
Please help me. I'm using db visualizer8.0.11 version.
the query I used was:
INSERT INTO METRICS.ORG_MAP (REPORT_END_DATE,ENTITY,ENTITY_TYPE,RELATIONSHIP,TARGET,TARGET_TYPE)
SELECT REPORT_END_DATE,ENTITY,ENTITY_TYPE,RELATIONSHIP,TARGET,TARGET_TYPE
FROM METRICS.ORG_MAP

Answer 1

i dont think there is any direct solution for your problem
but i have done some work around may be useful for you....
create table #table(id int,c varchar(2))
insert into #table values('1','a')
insert into #table values('1','a')
insert into #table values('2','b')
insert into #table values('2','b')
insert into #table values('3','c')
insert into #table values('3','c')
insert into #table values('4','d')
insert into #table values('5','d')
declare #table table(uid int,id int ,c varchar(2));
with tbl as (
select ROW_NUMBER() OVER(ORDER BY id DESC) AS uid ,id,c from #table
)
insert into #table select * from tbl
declare #tmpid int,#tmpuid int,#cnt int
declare tmpc cursor
for select uid,id from #table;
open tmpc
fetch next from tmpc
into #tmpuid,#tmpid
while ##FETCH_STATUS = 0
BEGIN
set #cnt = (select COUNT(id) from #table where id = #tmpid)
IF (#cnt > 1)
BEGIN
delete from #table where uid = #tmpuid
END
fetch next from tmpc
into #tmpuid,#tmpid
END
CLOSE tmpc;
DEALLOCATE tmpc;
select * from #table
drop table #table