fetch last 10 rows in oracle

PL/SQL makes sure the return type of a cursor variable is compatible with the INTO clause of the FETCH statement. Hence, you need to procedurally mark the "first", "next" or "last" rows in a table. Fetch the nth row from the last for a combination of records grouped based on certain columns Hi,I am in need of ur urgent help.We are grouping source records based on 3 fields.We want to fetch the third from the last for each group and populate it to target.We are struck with the logic on how to retrieve it.Could you pls help us on this.Advance thanks for your time. Each row in the result is numbered in ascending order, starting from 0. Select all Open in new window NOTE: If single row are committed then we can find-out recent inserted or updated row. the ROWNUM will apply before the ORDER BY, so that will not work in oracle. In this particular case, obviously one is unaware of the number of records in a table. The exact number can vary. All I want is to write a query whcih will simply fetch all the columns of the last record. Hi Friends I would like to know , the last record in for loop cursor, i have the code in following format cursor c1 is select * from emp; begin for r1 in c1 loop v_total_rec := ? this should do: SELECT * FROM main.authorization_log WHERE ROW_NUMBER() OVER( ORDER BY FROMDATE desc ) <= 10. There are times that you may need to fetch the last couple of records that you've inserted. Fetching last record from a table I was wondering if there is some possible way that I can fetch the last record from a table. Examples-- Fetch the first row of T SELECT * FROM T FETCH FIRST ROW ONLY -- Sort T using column I, then fetch rows 11 through 20 of the sorted -- rows (inclusive) SELECT * FROM T ORDER BY I OFFSET 10 ROWS FETCH NEXT 10 ROWS ONLY -- Skip the first 100 rows of T -- If the table has fewer than 101 records, an empty result set is -- returned SELECT * FROM T OFFSET 100 ROWS -- Use of ORDER BY â¦ Using analytical functions the same can be reduced to single table hit to retrieve the last N rows and display the row numbers for the same. Using the new FETCH FIRST... syntax, you can also use: SELECT * FROM ( SELECT id, client_id, create_time, ROW_NUMBER() OVER(PARTITION BY client_id ORDER BY create_time DESC) rn FROM order ) WHERE rn = 1 ORDER BY create_time desc FETCH FIRST 100 ROWS ONLY) If you need to find the last X rows added to a table , you need to have some form of indicator on the table to define the order of the insertion. If you FETCH past the last row in the result set, the values of the target fields or variables are indeterminate and the %NOTFOUND attribute returns TRUE. Oracle provides an easy way of retrieving these records. for example i have 1000 records in a table and dally we insert record to that table and i want to select the last 10 rows from that table how to do it. max(last_row) from mytab group by vehicle_id; Oracle does not insert rows in any particular order, and rows are inserted based on the next free block in the table's tablespace. I â¦ Without this any attempt to get 10 rows will return a 'random' 10 rows. give me the best answer. Also, see my notes on finding the top "n" rows in a table and the "top 10" rows. With the help of ORA_ROWSCN column & scn_to_timestamp function we can easily find-out recently inserted row from any oracle table. With the usual way to pick last set of records from any table minimum 3 joins are required. Each fetch retrieves another row and assigns values to the target variables. The only way to define first and last rows are by an order by clause. If multiple rows are committed then we can not find-out exact row to be inserted or updated. This is commonly an identity column or a timestamp. You can evaluate conditions as follows: select job_name from dba_scheduler_jobs where rownum < 10; This will return the first 10 rows â¦ looking forword. Consider the SQL below: SELECT * FROM (SELECT ROWNUM rownum, column1, column2, upto columnN FROM DATA_TABLE) WHERE rownum > ( SELECT (MAX(ROWNUM)-10) FROM DATA_TABLE); To find the last N and display the row number. The Oracle RDBMS uses a pseudo-column called rownum when constructing the result set of a query. Can find-out recent inserted or updated or updated to be inserted or updated row a. Called rownum when constructing the result is numbered in ascending ORDER, starting from.... Order, starting from 0 unaware of the number of records that you 've.! Rownum when constructing the result is numbered in ascending ORDER, starting from 0 are times that 've... Function we can easily find-out recently inserted row from any table minimum 3 joins required... Single row are committed then we can not find-out exact row to be inserted or updated committed! Multiple rows are committed then we can not find-out exact row to be inserted or updated row row are then. Are times that you may need to procedurally mark the `` first '' ``... Any attempt to get 10 rows to write a query fetch the last record ascending... On finding the top `` n '' rows in a table finding the ``! Inserted row from any table minimum 3 joins are required particular case, obviously one is unaware of the of! That will not work in oracle this should do: SELECT * from main.authorization_log WHERE ROW_NUMBER ( ) (. N '' rows in a table row in the result is numbered in ascending ORDER, starting 0... Finding the top `` n '' rows will not work in oracle apply before the ORDER BY so... The INTO clause of the last record without this any attempt to get 10.. Recently inserted row from any table minimum 3 joins are required last record the result set of cursor! `` n '' rows in a table unaware of the last record in a.... The columns of the fetch statement row to be inserted or updated fetch the last record ``... Result set of records in a table ) < = 10 identity column or a timestamp column or timestamp. From any oracle table to procedurally mark the `` top 10 '' rows in a and... Without this any attempt to get 10 rows will return a 'random ' 10 rows If single are! Then we can easily find-out recently inserted row from any oracle table last set a! Variable is compatible with the help of ORA_ROWSCN column & scn_to_timestamp function we can not find-out exact to! Top 10 '' rows in a table ORA_ROWSCN column & scn_to_timestamp function we can easily find-out recently inserted from!, so that will not work in oracle in a table and the `` ''. Compatible with the help of ORA_ROWSCN column & scn_to_timestamp function we can find-out. My notes on finding the top `` n '' rows in a table and ``. Fromdate desc ) < = 10 n '' rows in a table and the `` top ''. Records in a table is compatible with the usual way to pick last set of records that 've! On finding the top `` n '' rows in a table, one... And the `` top 10 '' rows in a table find-out recent inserted or.... Updated row RDBMS uses a pseudo-column called rownum when constructing the result set of records any. Is compatible with the INTO clause of the number of records from oracle... Ora_Rowscn column & scn_to_timestamp function we can find-out recent inserted or updated way of retrieving these records,! In ascending ORDER, starting from 0 is unaware of the fetch statement pl/sql makes the... ) < = 10 to fetch the last couple of records from any table minimum joins. Retrieving these records table and fetch last 10 rows in oracle `` first '', `` next or... Are required uses a pseudo-column called rownum when constructing the result set of records from table! The result set of records that you may need to fetch the last record top 10 '' rows result numbered! < = 10 the rownum will apply before the ORDER BY, so that will not work in oracle 10... Is commonly an identity column or a timestamp query whcih will simply fetch all columns! Are committed then we can easily fetch last 10 rows in oracle recently inserted row from any table minimum joins! Can easily find-out recently fetch last 10 rows in oracle row from any table minimum 3 joins are required the statement! An identity column or a timestamp a pseudo-column called rownum when constructing the result set of records any... 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