Semantic search

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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

class:

An additional CSS class to set for the table

transpose:

Display table headers vertically and results horizontally

sep:

The separator between results

Sort options

Delete

Add sorting condition

ResultCodeDebugExtra

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

{{#ask: [[Category:Companies:CompanyContact]] [[Companies:postcode::EC4V 6AB]]
 |?Companies:town
 |?Companies:county
 |?Has coordinates
 |format=table
 |limit=50
 |offset=1
 |sort=
 |order=asc
 |mainlabel=
}}

Results 2 – 9 previous 50 20 50 100 250 500 next 50

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Query log

{
    "query_string": "[[Category:Companies:CompanyContact]] [[Companies:postcode::EC4V 6AB]]",
    "query_source": "SMWSQLStore",
    "query_time": "0.0062",
    "from_cache": false
}

SQLStore debug output

ASK Query

[[Category:Companies:CompanyContact]] [[Companies:postcode::EC4V 6AB]]

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
`smw_object_ids` AS t0
INNER JOIN
(`smw_fpt_inst` AS t2
INNER JOIN
`smw_di_wikipage` AS t4 ON t2.s_id=t4.s_id) ON t0.smw_id=t2.s_id
WHERE
(t2.o_id='518'
   AND (t4.p_id='523' AND t4.o_id='346080')
  )
  AND t0.smw_iw!=':smw'
  AND t0.smw_iw!=':smw-delete'
  AND t0.smw_iw!=':smw-redi'
ORDER BY
t0.smw_sort ASC
LIMIT
55
OFFSET
1

SQL Explain

ID	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t4	ref	s_id,o_id,p_id,s_id_2,s_id_3,o_id_2,o_id_3	o_id	5	const	9	Using where; Using temporary; Using filesort
1	SIMPLE	t2	ref	s_id,o_id,s_id_2,o_id_2	s_id	4	callto_wikidb.t4.s_id	1	Using where
1	SIMPLE	t0	eq_ref	PRIMARY,smw_id,smw_iw,smw_iw_2	PRIMARY	4	callto_wikidb.t4.s_id	1	Using where

Auxilliary Tables

No auxilliary tables used.

Query Metrics

Query-Size:3
Query-Depth:1

Errors and Warnings

None

	Companies:town	Has coordinates
01179304204	LONDON	51° 27' 10.76" N, 2° 35' 26.18" W
01217114481	LONDON	52° 24' 54.62" N, 1° 46' 26.59" W
01315584800	LONDON	55° 57' 13.47" N, 3° 11' 39.85" W
01619243900	LONDON	53° 23' 25.38" N, 2° 20' 48.47" W
02034780650	LONDON	51° 30' 49.49" N, 0° 6' 17.05" W
02074033299	LONDON	51° 30' 49.15" N, 0° 6' 16.64" W
02074890213	LONDON	51° 30' 42.15" N, 0° 5' 37.88" W
02078420630	LONDON	51° 30' 49.15" N, 0° 6' 16.64" W