Gps_location | Gps location service example | Map library
kandi X-RAY | Gps_location Summary
kandi X-RAY | Gps_location Summary
Gps location service example
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QUESTION
I have two questions:
- As my title, which one is more efficient for running large query on large volume of data?
I've looked at MySQL doc which explains about workbench's performance in https://www.mysql.com/products/workbench/performance/ however I cannot seem to find any resource that specifically talks about efficiency difference between running query on cmd and query on workbench.
How to optimize this query
...
ANSWER
Answered 2019-Oct-08 at 09:19Based on the Explain plan, optimizer is not able to use any index for ORDER BY rent
. So try the following:
- Ensure that an index exists on the
rent_date
column of therents
table. This index will be used to optimize theORDER BY
clause. It can be a single column index, or a multi-column one (used in other scenarios). But, in case of multi-column one, you need to ensure that therent
column is the first column in the index order. - Ensure that an index exists on the
id
column of thekickscooters
table. Details about single-column / multi-column index remains the same as in the point #1. - Ensure that an index exists on the
serial_number
column of thekickscooter_states_190614
table. Details about single-column / multi-column index remains the same as in the point #1.
Now, after ensuring these indexes, try your original query. Most likely, optimizer should be able to optimize the Join Order. Besides, the above query, you can enforce join order by using STRAIGHT_JOIN
optimizer hint. So, try the following query as well, and benchmark between the two of them:
QUESTION
I have this array of coordinates and the end goal is to group coordinates that are within 30 minutes from each other.
Any pointers on how i might achieve this in Javascript?, The sample data that i'm using is as below.
...ANSWER
Answered 2018-Oct-29 at 14:59Here is one version that might work for you:
QUESTION
I wrote a query.
In my db I have a field
gps_location: string in format: 41.22,42,33..
My feed should return data near that locations (like 50km).
I tried this.
...ANSWER
Answered 2018-Jun-13 at 12:28I created this repository method to select a "Location" entity that is in a certain radius of another "Location" entity. Maybe you can modify it to your own needs.
QUESTION
I am working on a WordPress plugin and need to sanitize the POST data within this function. Would sanitize_text_field() be the best way to go about it? Also what is the proper way to add it to the code below?
...ANSWER
Answered 2018-Apr-05 at 21:35Using $wpdb->prepare is doing the sanitizing for you
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Install Gps_location
You can use Gps_location like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Gps_location component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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