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Condition

Printout selection

Options

Parameters [+]

limit:

The maximum number of results to return

offset:

The offset of the first result

link:

Show values as links

headers:

Display the headers/property names

mainlabel:

The label to give to the main page name

intro:

The text to display before the query results, if there are any

outro:

The text to display after the query results, if there are any

searchlabel:

Text for continuing the search

default:

The text to display if there are no query results

outlineproperties:

The list of properties to be displayed as outline headers, separated by commas

template:

The name of a template with which to display the printouts

introtemplate:

The name of a template to display before the query results, if there are any

outrotemplate:

The name of a template to display after the query results, if there are any

userparam:

A value passed into each template call, if a template is used

named args:

Name the arguments passed to the template

Sort options

Delete

Add sorting condition

ResultCodeDebugExtra

To embed this query inline into a wiki page use the code below.

{{#ask: [[Category:Cleanup]]
 |format=outline
 |limit=250
 |offset=1
 |link=all
 |sort=
 |order=random
 |headers=hide
 |mainlabel=
 |intro='''Can this be improved?'''
 |searchlabel= ''
}}

Results 2 – 251 previous 250 20 50 100 250 500 next 250

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Query log

{
    "query_string": "[[Category:Cleanup]]",
    "query_source": "SMWSQLStore",
    "query_time": "0.6142",
    "from_cache": false
}

Debug output SQLStore

ASK Query

[[Category:Cleanup]]

SQL Query

SELECT DISTINCT
t0.smw_id AS id,
  t0.smw_title AS t,
  t0.smw_namespace AS ns,
  t0.smw_iw AS iw,
  t0.smw_subobject AS so,
  t0.smw_sortkey AS sortkey, t0.smw_sort
FROM
`wiki_smw_object_ids` AS t0
INNER JOIN
(`wiki_smw_fpt_inst` AS t1
INNER JOIN
`wiki_t2` AS t2 ON t1.o_id=t2.id) ON t0.smw_id=t1.s_id
WHERE
t0.smw_iw!=':smw'
  AND t0.smw_iw!=':smw-delete'
  AND t0.smw_iw!=':smw-redi'
ORDER BY
RAND()
LIMIT
255
OFFSET
1

SQL Explain

ID	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	ALL	PRIMARY				157	Using temporary; Using filesort
1	SIMPLE	t1	ref	s_id, o_id, s_id_2, o_id_2	o_id_2	5	sarna_wiki.t2.id	26	Using index
1	SIMPLE	t0	eq_ref	PRIMARY, smw_id, smw_iw, smw_iw_2	PRIMARY	4	sarna_wiki.t1.s_id	1	Using where

Auxilliary Tables

Temporary table t2
Recursively computed hierarchy for element(s) ('4967').
SELECT s_id FROM `wiki_smw_fpt_subc` WHERE o_id='4967' LIMIT 1

Query Metrics

Query-Size:1
Query-Depth:0

Errors and Warnings

None

Can this be improved?

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Query log

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