I'd like to use a filter in Apache Superset. However, most examples were to load the results and then apply the filter.
I want to put this in the middle of Query as a variable.
All I found was the WHERE condition at the end.
ex)
SELECT a AS a , b AS b , c AS c , d AS d
(
SELECT a,b,c,d
FROM table
)AS `expr_qry`
WHERE a = '1' -- filter
If I make a filter, I brought it to WHERE.
But what I want is as follows.
SELECT a,b,c,#var1 as d
FROM table
WHERE a = '#var2'
Put it in like a variable above.
Is there a way to do this?
Apache Superset has support for SQL templating to achieve this.
For example, You can retrieve the value for a specific filter as a list using {{ filter_values() }}
SELECT *
FROM your_table
WHERE
account_id in ({{ "'" + "','".join(filter_values('account_id')) + "'" }})
Read through the doc for more details https://superset.apache.org/docs/installation/sql-templating
Related
I need to force user to have filter on column with date. Dataset is rly big and it must-have. I know how to force user to have any filter. Just add to "Where":
:apex$f1 is not null
But I need to find how to force user to have filter on specific column
Like i wrote in comment this is solution (I couldn't find better one)
In 'Where Clause' I added this
EXISTS (SELECT /*+ NO_UNNEST */ F.*, R.*, C.* FROM apex_appl_page_ig_rpt_filters F, APEX_APPL_PAGE_IG_RPTS R, APEX_APPL_PAGE_IG_COLUMNS C
WHERE 1=1
AND F.report_id = R.report_id AND C.column_id = F.column_id
AND F.APPLICATION_ID = 100 AND F.PAGE_ID = 100
AND C.NAME = 'MY_COLUMN_NAME'
AND C.REGION_NAME = 'MY_REGION_NAME'
AND R.SESSION_ID = :APP_SESSION)
This checks setting of IG in apex objects. In addition you just need to wrote in Messages "When No Data Found" something about that column that is required, just to inform users.
I have two tables I would like to call, but I am not sure if it is possible to combine them into one query or I have to some how call 2 different queries.
Basically I have 2 tables:
1) item_table: name/id etc. + category ID
2) category_table: categoryID, categoryName, categoryParentID.
The parent categories are also inside the same table with their own name.
I would like to call on my details from item_table, as well as getting the name of the category, as well as the NAME of the parent category.
I know how to get the item_table data, plus the categoryName through an INNER JOIN. But can I use the same query to get the categoryParent's name?
If not, what would be the mist efficient way to do it? The rest of the code is in C++.
SELECT item_table.item_name, c1.name AS CatName, c2.name AS ParentCatName
FROM item_table join category_table c1 on item_table.categoryID=c1.categoryID
LEFT OUTER JOIN category_table c2 ON c2.categoryID = c1.categoryParentID
SQL Fiddle: here
I have several database tables with 2 primary keys, id and date. I do not update the records but instead insert a new record with the updated information. This new record has the same id and the date field is NOW(). I will use a product table to explain my question.
I want to be able to request the product details at a specific date. I therefore use the following subquery in DQL, which works fine:
WHERE p.date = (
SELECT MAX(pp.date)
FROM Entity\Product pp
WHERE pp.id = p.id
AND pp.date < :date
)
This product table has some referenced tables, like category. This category table has the same id and date primary key combination. I want to be able to request the product details and the category details at a specific date. I therefore expanded the DQL as shown above to the following, which also works fine:
JOIN p.category c
WHERE p.date = (
SELECT MAX(pp.date)
FROM Entity\Product pp
WHERE pp.id = p.id
AND pp.date < :date
)
AND c.date = (
SELECT MAX(cc.date)
FROM Entity\ProductCategory cc
WHERE cc.id = c.id
AND cc.date < :date
)
However, as you can see, if I have multiple referenced tables I will have to copy the same piece of DQL. I want to somehow add these subqueries to the entities so that every time an entity is called it adds this subquery.
I have thought of adding this in a __construct($date) or some kind of setUp($date) method, but I'm kind of stuck here. Also, would it help to add #Id to Entity\Product::date?
I hope someone can help me. I do not expect a complete solution, one step in a good direction would be very much appreciated.
I think I've found my solution. The trick was (first, to update to Doctrine 2.2 and) using a filter:
namespace Filter;
use Doctrine\ORM\Mapping\ClassMetaData,
Doctrine\ORM\Query\Filter\SQLFilter;
class VersionFilter extends SQLFilter {
public function addFilterConstraint(ClassMetadata $targetEntity, $targetTableAlias) {
$return = $targetTableAlias . '.date = (
SELECT MAX(sub.date)
FROM ' . $targetEntity->table['name'] . ' sub
WHERE sub.id = ' . $targetTableAlias . '.id
AND sub.date < ' . $this->getParameter('date') . '
)';
return $return;
}
}
Add the filter to the configuration:
$configuration->addFilter("version", Filter\VersionFilter");
And enable it in my repository:
$this->_em->getFilters()->enable("version")->setParameter('date', $date);
I have an SQL query that I have written using CTE. Now, I am moving the repository to use Entity Framework 5.
I am at a loss as to how to integrate (or rewrite) the CTE-based query using Entity Framework 5.
I am using POCO entities with the EF5 and have a bunch of Map classes. There is no EDMX file etc.
I feel like a total noob right now and would appreciate any help pointing me in the right direction.
The CTE query is as following
WITH CDE AS
(
SELECT * FROM collaboration.Workspace AS W WHERE W.Id = #WorkspaceId
UNION ALL
SELECT W.* FROM collaboration.Workspace AS W INNER JOIN CDE ON W.ParentId = CDE.Id AND W.ParentId <> '00000000-0000-0000-0000-000000000000'
)
SELECT
W.Id AS Id,
W.Name AS Name,
W.Description AS Description,
MAX(WH.ActionedTimeUtc) AS LastUpdatedTimeUtc,
WH.ActorId AS LastUpdateUserId
FROM
collaboration.Workspace AS W
INNER JOIN
collaboration.WorkspaceHistory AS WH ON W.Id = WH.WorkspaceId
INNER JOIN
(
SELECT TOP 10
CDE.Id
FROM
CDE
INNER JOIN
collaboration.WorkspaceHistory AS WH ON WH.WorkspaceId = CDE.Id
WHERE
CDE.Id <> #WorkspaceId
GROUP BY
CDE.Id,
CDE.ParentId,
WH.ActorId,
WH.Action
HAVING
WH.ActorId = #UserId
AND
WH.Action <> 4
ORDER BY
COUNT(*) DESC
) AS Q ON Q.Id = WH.WorkspaceId
GROUP BY
W.Id,
W.Name,
W.Description,
WH.ActorId
HAVING
WH.ActorId = #UserId
You must create stored procedure for your SQL query (or use that query directly) and execute it through dbContext.Database.SqlQuery. You are using code-first approach where you don't have any other options. In EDMX you could use mapped table valued function but code-first doesn't have such option yet.
I have built a stored procedure which takes array of ids as input parameter and return data table using recursive cte query Take a look at the code here it's using EF and code first approach
I am returning a SQL dataset in SSRS (Microsoft SQL Server Reporting Services) with a one to many relationship like this:
ID REV Event
6117 B FTG-06a
6117 B FTG-06a PMT
6117 B GTI-04b
6124 A GBI-40
6124 A GTI-04b
6124 A GTD-04c
6136 M GBI-40
6141 C GBI-40
I would like to display it as a comma-delimited field in the last column [Event] like so:
ID REV Event
6117 B FTG-06a,FTG-06a PMT,GTI-04b
6124 A GBI-40, GTI-04b, GTD-04c
6136 M GBI-40
6141 C GBI-40
Is there a way to do this on the SSRS side of things?
You want to concat on the SQL side not on the SSRS side, that way you can combine these results in a stored procedure say, and then send it to the reporting layer.
Remember databases are there to work with the data. The report should just be used for the presentation layer, so there is no need to tire yourself with trying to get a function to parse this data out.
Best thing to do is do this at the sproc level and push the data from the sproc to the report.
Based on your edit this is how you would do it:
To concat fields take a look at COALESCE.
You will then get a string concat of all the values you have listed.
Here's an example:
use Northwind
declare #CategoryList varchar(1000)
select #CategoryList = coalesce(#CategoryList + ‘, ‘, ”) + CategoryName from Categories
select ‘Results = ‘ + #CategoryList
Now because you have an additional field namely the ID value, you cannot just add on values to the query, you will need to use a CURSOR with this otherwise you will get a notorious error about including additional fields to a calculated query.
Take a look here for more help, make sure you look at the comment at the bottom specifically posted by an 'Alberto' he has a similiar issue as you do and you should be able to figure it out using his comment.