uom | Extensible unit of measure conversion | Runtime Evironment library
kandi X-RAY | uom Summary
kandi X-RAY | uom Summary
This package has functions to handle unit of measures. It works particulary well with typescript in which case it can provice some type safety for amounts of different quantity.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of uom
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QUESTION
I'm having some performance issues due to full scans being run on some larger tables for a report. I've narrowed things down to this section of the query but can't figure out how to avoid the scans without changing the results.
To explain, we have a data archiving system that copies data from the live table to the archive table daily. The data is not removed from the live table until a period of time has passed. This results in a state where the live table and archive table will both have the same rows, but the data in the rows may not match.
This rules out a UNION query (which would eliminate the full scans). The requirements are for the report to show live data, so I also can't query just the archive table.
Any ideas? Here is the query. The primary keys of both tables is DetailIdent, but I do have an index on OrderIdent, as it's a foreign key back to the parent table. You can see that we take the main table results if they exist, otherwise we fall back to the archive data.
...ANSWER
Answered 2022-Mar-21 at 21:48The filtering predicate COALESCE(RegOD.OrderIdent,ArcOD.OrderIdent) = 717010
is killing performance and it's forcing the engine to perform a full scan first, and filter data later.
Rephrase the COALESCE()
function and let the engine do its work. With a bit of luck the engine will be smart enough to find the optimization. In this case the query can take the form:
QUESTION
I am using the following query in SP.
...ANSWER
Answered 2022-Jan-28 at 12:46It seems like you have row by row processing in your [tmpFinalTethers]
and [tmpGetFinalTethers]
cte's.
Each row returned in [tmpFinalTethers]
is based on [tmpOrderedTethers]
and [tmpOrderedTethers]
's data is based on [tmpTethers]
. Therefore the logic which contains in [tmpOrderedTethers]
and [tmpTethers]
will be executed n times, where n is a number of rows returned by [tmpFinalTethers]
.
The reason is because cte's are not materialized objects. They are not get stored in memory or disc, so they're executing each time you reference them outside of declaration.
Loading the resultset of [tmpOrderedTethers]
to temp table may help if you really need row by row processing for your task and don't have other options.
Also it seems like your [tmpFinalTethers]
and [tmpGetFinalTethers]
have the same logic inside. I am not sure what the purpose for it. Mb you can do final select from [tmpFinalTethers]
and get rid of [tmpGetFinalTethers]
.
Edited:
Try smth like this:
QUESTION
i have an sql table with three columns which have comma separated values, i am trying to print it inside an html table, my code looks like below:
...ANSWER
Answered 2022-Jan-13 at 08:30Use a counter - assuming exact same number of entries per row
http://sandbox.onlinephpfunctions.com/code/555be47daf3bc3e99d496585f702bfc9dfae4e4e
QUESTION
Consider code:
...ANSWER
Answered 2022-Jan-09 at 15:05Like others said, you're
- missing a hash implementation
- using a pretty inefficient key type
I'd simplify on both accounts:
QUESTION
I have data coming back from the db like so:
...ANSWER
Answered 2021-Dec-11 at 21:01Your mistakes lies in this function:
QUESTION
I have column naming issue when using entities inside of a Value Object with Entity Framework Core. EF wants to name the foreign key of the value object's entity to a long ugly name. E.g. PropertyName_ForeignKeyID. What I want is to control the name of the db column field with Fluent API.
If I have a Value Object called Measurement and it has a property to an Entity called UnitOfMeasure, the relationships work just fine but the column naming is super ugly.
Following is the sample model
...ANSWER
Answered 2021-Nov-13 at 09:43HasForeignKey
specifies the (shadow) property name. The conventional column name is the same as the property name, however for owned entity types it includes the owner property name (similar to other properties).
Hence what you need is to specify the column name similar to the "working" example. e.g. knowing that the conventional shadow FK property name in this case is UOMId
, it could be set as follows
QUESTION
Describe the bug
I'm trying to generate a chart, however when I pass the parameter "filter" to SQL Builder, more specifically the file "TotalRecordsController" assembles the query as if I were using MySQL, instead of mounting it for PostgreSQL.
Laravel: 8.40 PHP: 7.4 PostgreSQL: 12 Nova: 3.30 ChartJS: 0.3.5
- Linux Mint
- Chrome
My Code:
...ANSWER
Answered 2021-Nov-01 at 17:42I'm resolving this problem. The solution is to change the file "src/api/TotalRecordsController" inside the folder "~/vendor/coroowicaksono/chart-js-integration" so that it suits PostgreSQL.
QUESTION
I'm struggling some beginner issues with R and tables. I spend most of my data visualisation time in Tableau but I want to be able to replicate work in R to take advantage of the report generation capacity of RMarkdown and the StatCanR library to allow me to pull data in from their Statistics Canada's CANSIM/CODR tables. My coding experience is along the lines of C, C++, Java, Javascript and Python with all but Python learnt in college around the turn of the millenium.
I am extracting rates of certain types of crimes and have created the following table.
...ANSWER
Answered 2021-Oct-07 at 05:31This is much easier with the data in "long" format. Below is an example with fake data. We use the lag
function to get changes over different time ranges. Once you've added the changes over various timescales, you can subset and reshape the data as needed to create your final tables.
QUESTION
I am new in MongoDB. When I run the code below, I get an errror: Topology is closed
. I want to create a document in collection. Why does this happen and how can I fix it? I would appretiate any help.
ANSWER
Answered 2021-Sep-18 at 16:401- Check your database name and password.
2- Open Mongodb atlas and in "Network Access", change the IP address as "0.0.0.0/0 (includes your current IP address) ".
3- Maybe you can try adding "await" before client.close().
QUESTION
I'm new to Mongo. By new I mean couple of hours new.
Basically I have this document structure:
...ANSWER
Answered 2021-Sep-18 at 02:29Aggregate solution
(requires MongoDB 5, else query would be a little bigger)
Query
- filter for the
_id
with the$match
stage - get last element of
$instock
, and then fieldqty
- project to keep only the above part
*we do it like we would do it in a programming language, get last element, and get a field value.
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