Questions tagged [offset-fetch]
OFFSET and FETCH is the SQL Standard method of paging, and the standardized way to do LIMIT OFFSET
28
questions
2
votes
1
answer
658
views
What's the difference between FETCH FIRST and FETCH NEXT in PostgreSQL?
What's the difference between FETCH FIRST and FETCH NEXT in PostgreSQL? The docs simply say
NEXT
Fetch the next row
FIRST
Fetch the first row of the query
which isn't much of an explanation. I ...
- 157
0
votes
1
answer
69
views
'Limit INT OFFSET @variable' throw runtime error in mysql server
I'm trying to solve this problem in Hackerrand
The problem asks for the median in a specific column
my code:
SET @VAE = (SELECT COUNT(*) FROM STATION);
SET @VAE1 = ROUND(@VAE/2)-1;
SELECT LAT_N FROM ...
0
votes
1
answer
333
views
Why does my LIMITed SELECT fetch the last record of the table, not the first?
I read that to fetch the first table record, you may use LIMIT 1. I tried to apply that knowledge to my JOIN statement and got a diametrically opposite result. It joined the last record of the joined ...
- 157
1
vote
0
answers
1k
views
Best way to implement Pagination in SQL Server
I have a complex stored procedure that takes a customerId and some other parameters and returns thousands of rows. We want to implement pagination in this SP since the number of rows being returned is ...
- 437
1
vote
0
answers
533
views
limit user's SELECT query to a fixed number of rows
i have read the following questions:
Limit Postgres results for a user
and also noted the recommendation of limiting a user's statement_timeout, however i would like something a little more consistent....
- 11
3
votes
2
answers
2k
views
Why doesn't an OFFSET query benefit more from the index?
I've got a simple example books table with an integer id primary key ("books_pkey" PRIMARY KEY, btree (id)) and 100,000,000 random rows. If I run:
EXPLAIN
SELECT *
FROM books
ORDER BY id
...
- 885
1
vote
1
answer
685
views
LIMIT and OFFSET a complex query
I have a query generated by a ORM (Sequelize), i ran into an issue where sequelize fails, look at those issues.
https://github.com/sequelize/sequelize/issues/7344
https://github.com/sequelize/...
- 113
0
votes
0
answers
17
views
Analysis of Conditions with no results and high offset number - PostgreSQL JSONB [duplicate]
I am asked to record down the analysis on PostgreSQL JSONB query having Conditions with high offset number and query that provide no results considering the below.
select
*
from
sub_test df,
...
1
vote
1
answer
672
views
Distinct result with row_id for limit query
There are 2 tables:
CREATE TABLE sample1 (
id int,
name varchar,
score int,
mode int
)
CREATE TABLE sample2 (
id int,
mode int
...
)
I need to select distinct name with MIN(score) and ...
- 113
4
votes
1
answer
8k
views
How to take make OFFSET & LIMIT with COUNT (OVER?) when having a subquery?
It appears I have a case I can't quite wrap my brains around. So coming here in hopes to find pointers to a query that maybe could be helpful to someone else too.
In the following, I have a query ...
- 259
4
votes
1
answer
1k
views
How to get tsql TOP PERCENT with OFFSET
select top 10 percent *
from sys.databases
order by database_id
I want to get the same 10 percent result using offset but this query works wrong
offset 0 rows
fetch next (select cast((count(*) * 10/...
- 2,120
3
votes
1
answer
2k
views
Difference between LIMIT N and FETCH NEXT N ROWS?
The two queries below seem equivalent. Is one better than the other? e.g. in terms of performance.
select * from some_table offset 10 limit 10;
select * from some_table offset 10 fetch next 10 rows;
- 163
2
votes
1
answer
3k
views
Get total number of rows when offset is greater than max
I have a table users that has, say, 42 records. To get the total rows and some other details, I use a window function:
select count(*) over() as count, name, id from users
And since the consumer app ...
- 123
5
votes
1
answer
11k
views
Reduce query time for higher offset in sql server
Currently, I have table base_voter with data around 100M of dummy data. I have stored procedure as follows:
CREATE Procedure [dbo].[spTestingBaseVoter]
@SortColumn NVARCHAR(128) = N'...
- 195
3
votes
1
answer
1k
views
What is the SQL Standard method of doing LIMIT OFFSET?
I know LIMIT and OFFSET are pretty common but unstandardized methods to page through a result set. I know there is a standardized method, but I can never find this when I'm going to look it up,
The ...
- 62.1k
1
vote
2
answers
6k
views
How to get the top 20 percent records with a single query?
SELECT start_coins
FROM coins
ORDER BY start_coins DESC LIMIT 10; /* till here the query works*/
CAST((COUNT(start_coins) * 0.2) AS INT);
I want the number returning from the count to be used as ...
4
votes
1
answer
4k
views
MSSQL efficient paging including a join on big tables
We have a table with products and a table with a current selection/assortment of products. Now need to join them create an export file by some .net code.
Currently using query like this:
SELECT * ...
- 41
9
votes
3
answers
8k
views
SQL Server Error, "Invalid usage of the option FIRST in the FETCH statement."
From 2012 onward the SQL Server docs show they support OFFSET..FETCH which I'm trying to use instead of a LIMIT.
The following works fine in PostgreSQL to sample a result set,
SELECT *
FROM ( VALUES ...
- 62.1k
1
vote
0
answers
769
views
MySQL: Limit number of rows returned with a given column value
My table has a list of activities, each associated with a customer and each with a date when the activity happened. I want to group by the customer ID and the month and the year, then sort by the ...
- 111
4
votes
2
answers
189
views
Implicit conversion in fetch
While studying different query plans to improve performance I noticed that FETCH is doing an implicit convert to bigint.
Example table and query:
CREATE TABLE checkPagintion
(
Id INT NOT NULL ...
- 143
3
votes
2
answers
2k
views
OFFSET X ROWS FETCH NEXT 50 ROWS ONLY not using indexes
I have a query that is using OFFSET X ROWS FETCH NEXT 50 ROWS ONLY. If X is 160745 it uses the index, if X is 160746 it does not. There are more than 400000 records. With the index, it takes about 2 ...
- 31
1
vote
0
answers
184
views
Logical read when use Offset in SQL
When I execute this script
SET STATISTICS IO ON
SELECT
*,
ROW_NUMBER() OVER (ORDER BY [Date] DESC) AS [ROW_NO]
FROM
vwTblTest
WHERE
([Factor] >= 139501 AND [Factor] < ...
- 121
1
vote
1
answer
3k
views
Speed up ORDER BY and LIMIT in MySQL
I have a table with contact records, and clients wish to search this table to find records with a matching email address (filtered by account ID). The results are paginated by a RESTful API.
This ...
- 1,342
5
votes
1
answer
576
views
OFFSET ... FETCH overlapping results on second page
When using OFFSET ... FETCH, I'm having I'm getting...interesting results.
Here are two sqlfiddles to illustrate my problem.
http://sqlfiddle.com/#!6/71ac1/4 and http://sqlfiddle.com/#!6/71ac1/8
...
- 163
5
votes
2
answers
8k
views
How to deal with large offsets in select?
Table jtest with 200k rows, each row contains jsonb { id: "<uuid>", key: <index> } (<index> is integer 1-200k incremented per each row). There is also btree index on data->'key'.
...
- 1,355
3
votes
1
answer
934
views
Slow Query with LIMIT
We have this query:
SELECT "messages".*
FROM "messages"
WHERE "messages"."account_id" = 1
AND "messages"."status" = 'unread'
AND (created_at >= '2014-04-24 01:00:00.000000')
ORDER BY id DESC
It ...
- 31
15
votes
3
answers
4k
views
Why are there execution plan differences between OFFSET ... FETCH and the old-style ROW_NUMBER scheme?
The new OFFSET ... FETCH model introduces with SQL Server 2012 offers simple and faster paging. Why are there any differences at all considering that the two forms are semantically identical and very ...
- 7,300
0
votes
2
answers
3k
views
limit and then group by in MySQL
I have a mysql table having following structure :
payment_id(int auto_increment),
emp_id(int),
chargeTime(datetime),
payment(double)
I need to have three latest (with respect to chargeTime) ...
- 1,516