zdb | Библиотека для работы с БД | SQL Database library
kandi X-RAY | zdb Summary
kandi X-RAY | zdb Summary
Библиотека представляет собой, Active Record построеный на функциональности библиотеки ADODB. Создадим класс сущности Пользователь, на основе класса Entity.
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Top functions reviewed by kandi - BETA
- Find a record
- Find array by field name
- get class metadata
- Get single entity
- Delete a record by ID
- Open the database connection
- Configure the database
- Get the DB object
- Get the connection object
- Close the database connection
zdb Key Features
zdb Examples and Code Snippets
Lines of Code : 20License : Permissive (MIT)
CopyCREATE TABLE `users` (
`username` varchar(255) ,
`created` date ,
`user_id` int(11) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`user_id`)
)
/**
* @table=users
* @keyfield=user_id
*/
class User extends Entity{
}
$user = new User();
Community Discussions
Trending Discussions on zdb
QUESTION
I am trying to show multiple sets of different polylines (each set represents one cycling route with its own start and endpoint).
There are ten routes in total I am bringing in from a JSON file. The problem is the map is consolidating all the individual ten routes into one mammoth polyline.
So It is sort of connecting them all together (you can just make out the very straight line connecting between each route and only one startCap and endCap icon).
I would expect/want to see ten different startCap and endCap icons and spaces between each polyline set.
So how do I make the map show each polyline route as distinct routes?
I am using flutter_polyline_points to decode the polyline route to the google map.
Code below and the JSON is on the live link to make it easy to emulate if that helps.
In essence in terms of steps :
I create the google map and have one main central marker on it.
I then bring in ten routes from a
JSONfile. These are ten objects in an array called Segments. Each object has a unique id I use for thePolyLineidand a unique polyline set of points in a string. So I bring in theJSONand then.iterate over each object and decode the polyline string to polyline coordinates which I attempt to then add to the map as multiple PolyLines.
Also to here is the output I am seeing to bring the issue to life.
...ANSWER
Answered 2021-Feb-16 at 11:55You have to create a list of object which contains lat long. Add polylines coordinates and markers into the list. As showing in the link.
QUESTION
I have the list which contains 50 sample IDs. The part of the list looks like the following:
...ANSWER
Answered 2021-Jan-25 at 13:30Supposed you have your addToTable method which takes a query and a name then you can do the following:
QUESTION
There are somecases I have to add statement, like logs or trace to an expression, for example (I wanna log exactly the time for prep_stmt.executeQuery() and still I need its return value):
ANSWER
Answered 2020-Sep-17 at 13:21Maybe better to write a templated wrapper like this:
QUESTION
I have a hive external table partitioned on dt(string).
Some values in partitioned column are none, which means that these rows go into the null partition(dt=HIVE_DEFAULT_PARTITION). I want to update location for this partition.
...ANSWER
Answered 2020-Jun-29 at 13:44enclose __HIVE_DEFAULT_PARTITION__ in quotes("") then you are able to set the location for default partition.
QUESTION
I'm using R to process RNA sequencing data, to which I'm very new. I'm using data frames of reference material from BioMart which, when GO terms are included, are very badly arranged (as follows).
...ANSWER
Answered 2020-May-11 at 05:39Ok - I think something like this might be what you're looking for...
I've made a minimal example dataset - test_data containing some genes & some annotations.
QUESTION
I wanted to install SQLAlchemy for Python 3 for working with databases.
I searched for the package using pip3 search SQLAlchemy, but I didn't find SQLAlchemy as part of the results.
Why don't SQLAlchemy show up in the output below, when the package is available on PyPI?
https://pypi.org/project/SQLAlchemy/
SQLAlchemy 1.3.15
...ANSWER
Answered 2020-Apr-01 at 18:38$ pip search sqlalchemy | wc -l
100
QUESTION
I'm working on gathering performance metric data from a SAN (5.11 omnios-7648372 ). we use dataon JBOD.
a snip of Output of zdb -C mypoolname :
...ANSWER
Answered 2018-May-26 at 01:09zdb is showing you the path that ZFS uses internally to address the device, which is a path in the /dev filesystem that allows access to the block device file. (By the way, zdb is mainly meant as a debugging tool, and isn’t guaranteed to have backward compatibility for anything it prints.) It's addressing using the disk slice suffix s0, which is why that appears in those listings. I believe disk slices are basically the same as partitions. Slice 0 is usually the whole disk when you're using ZFS, since when you add an entire device into your zpool, ZFS will automatically format the device for you and it only needs / creates one slice. However, it's also possible to add just a single partition of a disk to your zpool (or even more stupidly, multiple partitions on the same drive as separate vdevs), so ZFS has to track which partition(s) it's actually in control of.
iostat is showing you just the device name, without the /dev path or the slice number. This is because iostat doesn't know about slices, and it just looks at the actual device when it collects its data.
I don't know what's up with smartctl. I would expect it to work at the device level like iostat, but maybe it's getting data passed to it through ZFS, which uses the slice number. This seems like a bug to me, since ideally you would have errors being reported in the smallest failure domain that they’re a part of, which in this case is the disk. (Although at least it’s easy to work around.)
QUESTION
I'm trying to conduct an experiment using a pre-coded project which inside this link here.
I'm using xampp as a web server with mysql. Whenever I run through the authentication page which has this code:
...ANSWER
Answered 2017-Dec-03 at 02:21Your Query is invalid because you are using wrong table name that is even no variable syntax i.e. $_usersTable. And also you are ending your query with multiple semi colons and even single/double quotes are not properly used.
You need to update your select query like below to resolve your issue:
QUESTION
I have a two disks zfs pool, after moving to a new PC, it has an error:
...ANSWER
Answered 2017-Oct-05 at 07:08As you have a mirror, you have one of two options:
zpool detachthe old disk,zpool attachthe disk again, but now with the correctly specified disk id.zpool replacethe old disk with the same disk, but now specified by the correct disk id.
QUESTION
I had multiple datasets, deleted them all with multiple commands. At first I saw that "root" dataset occupies like 100Gb, then 50Gb, then 20Gb... and it got "stuck" on 535M.
OS: FreebSD 11.0
I tried to "google it", but no result. No visible files in mountpoint /zm. Any insights?
...ANSWER
Answered 2017-Jul-26 at 09:06ZFS space maps are internal data structures that describe the free and allocated space being used by ZFS. As you delete data, the space maps should also shrink, but there are limitations as to how much they can shrink as all of ZFS's metadata need to be accounted for in the space maps as well.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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