union-all

I want to use union all with manual value, not from another table. And the values are: |cSatuan1|cSatuan2|nkonversi| ============================= | LTR | PCS | 1 | | PCS | LTR | 1 | I've made the query with my own way, but it gets error. here is the query: SELECT csatuan2, csatuan1, nkonversi FROM ms_metriks union all select 'LTR','PCS','1','PCS','LTR','1' Can you tell me what's wrong with my query, and what is the right query? Try this: SELECT csatuan2,csatuan1,nkonversi FROM ms_metriks UNION ALL SELECT 'LTR','PCS','1' UNION ALL SELECT 'PCS','LTR','1' Here is one way you can do it: SELECT

UNION and UNION ALL queries can outperform equivalent queries using OR -connected predicates under certain circumstances. To my knowledge, this is partially because UNION subselects can be executed in parallel and they can thus have their own "sub-plan" specific to each part of the OR -connected predicate, which is probably far more optimal due to simpler applicable query transformations. But writing OR -connected predicates is usually much more readable and concise, even if subquery factoring were applied to a UNION ALL solution. My question is: Is there a way to indicate to Oracle, that a

We are using a Postgres / PostGis connection to get data that is published via a geoserver. The Query looks like this at the moment: SELECT row_number() over (ORDER BY a.ogc_fid) AS qid, a.wkb_geometry AS geometry FROM ( SELECT * FROM test UNION ALL SELECT * FROM test1 UNION ALL SELECT * FROM test2 )a In our db only valid shapefiles will be imported each in a single table so it would make sense to make the UNION ALL part dynamic (loop over each table and make the UNION ALL statement). Is there a way to do this in a standard Postgres way or do I need to write a function and how would the syntax

Currently I have 2 tables, both of the tables have the same structure and are going to be used in a web application. the two tables are production and temp. The temp table contains one additional column called [signed up]. Currently I generate a single list using two columns that are found in each table (recno and name). Using these two fields I'm able to support my web application search function. Now what I need to do is support limiting the amount of items that can be used in the search on the second table. the reason for this is become once a person is "signed up" a similar record is

I need help also about paging and using UNION ALL for multiple tables: How do i implement an optimized paging when joining multiple tables using UNION ALL and returning only specific number of rows... declare @startRow int declare @PageCount int set @startRow = 0 set @PageCount = 20 set rowcount @PageCount select Row_Number() OVER(Order by col1) as RowNumber, col1, col2 from ( select col1, col2 from table1 where datetimeCol between (@dateFrom and @dateTo) union all select col1, col2 from table2 where datetimeCol between (@dateFrom and @dateTo) union all select col1, col2 from table3 where

I have a DB view which basically consists of two SELECT queries with UNION ALL , like this: CREATE VIEW v AS SELECT time, etc. FROM t1 // #1... UNION ALL SELECT time, etc. FROM t2 // #2... The problem is that selects of the form SELECT ... FROM v WHERE time >= ... AND time < ... perform really really slow on it. Both SELECT #1 and #2 are decently fast, properly indexed and so on: when I create views v1 and v2 like: CREATE VIEW v1 AS SELECT time, etc. FROM t1 // #1... CREATE VIEW v2 AS SELECT time, etc. FROM t2 // #2... And the same SELECT, with same WHERE condition as the above works OK on