🔥 และในวันนี้ แอดจะพาเพื่อน ๆ มาทำความรู้จักกับอีกหนึ่งคำสั่งเจ๋ง ๆ ใน SQL นั่นก็คือเจ้า EXPLAIN นั่นเองจ้าาา ~~
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👉 เจ้านี่มันคืออะไร มีรายละเอียดและวิธีการใช้งานยังไง ถ้าพร้อมแล้วมาอ่านกันเลยยย !!
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✨ EXPLAIN - เป็นคำสั่งที่ใช้บอกรายละเอียดในการ Query ข้อมูล เพื่อใช้วัดประสิทธิภาพในการ Query ข้อมูลนั่นเอง
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👨💻 Syntax
EXPLAIN (QUERY Statement) ; /* ONLY TAKES COMMAND AS PARAMETER */
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เจ้า EXPLAIN สามารถใช้นำหน้าคำสั่ง SELECT, UPDATE, INSERT และ DELETE ได้
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📑 วิธีการใช้งาน
🔸 Query ปกติ
SELECT * FROM demo_table WHERE demo_column = 'Demo Value';
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🔸 Query โดยใช้ EXPLAIN
EXPLAIN SELECT * FROM demo_table WHERE demo_column = 'Demo Value';
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จะได้ผลลัพธ์ ดังนี้
id: 1
select_type: SIMPLE
table: demo_table
partitions: NULL
type: const
possible_keys: PRIMARY
key: PRIMARY
key_len: 4
ref: const
rows: 1
filtered: 100.00
Extra: NULL
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🔸 id - id ของ Query EXPLAIN
🔸 select_type - แสดงความซับซ้อนของ Query ผลลัพธ์ด้านบนจะอยู่ในระดับ SIMPLE
🔸 table - แสดงชื่อของตาราง
🔸 partitions - แสดง Partitions ของตารางที่ใช้ใน Query
🔸 type - ระบุประเภทของการ Join
🔸 possible_keys - แสดง Key ที่ใช้
🔸 key - แสดงความยาวของ Key ที่ใช้
🔸 ref - การอ้างอิงที่ใช้ใน Query เมื่อทำการ Comparing Columns
🔸 rows - แสดงจำนวนแถว
🔸 filtered - แสดงเปอร์เซ็นต์ของแถวตามเงื่อนไขที่ระบุ
🔸 Extra - ข้อมูลเพิ่มเติมของ Query
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🌟 ประโยชน์
- ใช้เพื่อแสดงข้อมูลเกี่ยวกับการ Query
- มีประโยชน์มากในการออกแบบ Schema และ Index
- ใช้ตรวจสอบคำสั่ง Query ว่ามีประสิทธิภาพหรือไม่ เช่น วัดความเร็วในการ Query, ตรวจสอบการแบ่ง - Partition ของตาราง เป็นต้น
- ช่วยเพิ่มประสิทธิภาพในการ Query ข้อมูลใน Database
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💥 Source : https://arctype.hashnode.dev/mysql-understanding-explain , https://www.geeksforgeeks.org/explain-in-sql/
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borntoDev - 🦖 สร้างการเรียนรู้ที่ดีสำหรับสายไอทีในทุกวัน
同時也有8部Youtube影片,追蹤數超過23萬的網紅Coco哥,也在其Youtube影片中提到,撳我呢條Link下載Landlord Go即時送你100萬金幣! 仲可以享有一折課金買coin pack嘅優惠! http://bit.ly/CocoHK 開game頭七日Empire value最高嗰位觀眾,仲可以額外得到$100 giftcard! 記得喺Facebook、Instagram t...
「select value」的推薦目錄:
- 關於select value 在 BorntoDev Facebook 的最讚貼文
- 關於select value 在 Elecher.Why Facebook 的最佳貼文
- 關於select value 在 Facebook 的精選貼文
- 關於select value 在 Coco哥 Youtube 的最佳解答
- 關於select value 在 謙預 QianyuSG Youtube 的最讚貼文
- 關於select value 在 Adam Syaakir AS Youtube 的最佳解答
- 關於select value 在 Get selected value in dropdown list using JavaScript - Stack ... 的評價
- 關於select value 在 Value Select - YouTube 的評價
- 關於select value 在 ng-select/ng-select: Native angular select component - GitHub 的評價
select value 在 Elecher.Why Facebook 的最佳貼文
大家最近有看让人抓破脑袋的《刑偵日記》吗?
现在只需要回答两道问题就有机会赢取价值RM133.50的Slimfinity 营养代餐!
跟着以下步骤赶快来参加😍
Step 1: Post this post together with the answer for the question below in your story!
Q1: Mandy黃智雯 在【刑偵日記】里面工作部门名字是什么?
Answer : ...................
Q2: Mandy黃智雯 今年推荐过哪一个品牌的健康营养奶昔?
Answer : ...................
Step 2 : Tagged @slimfinity_official & me on your story too !
Step 3 : Once above step is done , comment 【I love Slimfinity】 on this post comment !
--------------------------
@slimfinity_official
Will select lucky winner after 3 days contest !
Contest date: 8/7/21 - 11/7/21
Those lucky winner that been selected can win a value gift worth RM133.50 !
select value 在 Facebook 的精選貼文
Parents' Day is approaching soon! Let the warmth of each tea cup deliver our love to our beloved parents.
Even though we couldn't meet each other, but when we recall the great times we've shared, it's all better.
I'm planning to celebrate Parents’ Day by gifting them TEAX Tea Gift Box. There are a few choices to select!
🍵 Ripe Puer Tea (Qing Er Wu Year 2012)
Reddish brown color tea with a rich woody fragrance, has mellow taste and sweetness
🍵 Raw Puer Tea (Er Wu Qing Year 2012)
Orange-yellow color tea with rich fragrance, and has a strong aftertaste
@teax.my is a platform by @purplecane_tea that trades and stores Malaysia-aged Puer following strict guidelines so that they will age in the way tea connoisseurs want for ultimate taste and value.
For every purchase of TEAX Parents Day Tea Gift Box, you will receive a personalized greeting card for you to include your warm greetings.
Receive 1 Mystery Vintage Puer Tea Pack 5g when you order here 👉 www.teax.my/referral/tallpiscesgirl
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#TEAX #TEAXmy #LiveLifeGreenWithTEA #WorldTeaDay #PuerTea #Puer #ParentsDay #TEAXParentsDay #TeaForParents #TeaCollector #TeaCollectors #TeaLovers #TeaLover #TeaStorage #MalaysianTeaStorage #chinesetea
select value 在 Coco哥 Youtube 的最佳解答
撳我呢條Link下載Landlord Go即時送你100萬金幣!
仲可以享有一折課金買coin pack嘅優惠!
http://bit.ly/CocoHK
開game頭七日Empire value最高嗰位觀眾,仲可以額外得到$100 giftcard!
記得喺Facebook、Instagram tag返我
仲有hashtag #LandlordGO 喇!
BNO VISA?? 申請失敗? 一個月後搞成點?
▶ 加入我們的patreon|https://www.patreon.com/cocogor
【如果喜歡這條影片,記得給我Like & 訂閲我的頻道 】
https://www.youtube.com/c/cocogor?sub_confirmation=1
?Instagram|https://www.instagram.com/officialcocogor/
?Facebook|https://www.facebook.com/officialcocogor/
?商務合作|officialcocogor@gmail.com
▄▄▄▄▄▄▄⭐️ 精選影片⭐️ ▄▄▄▄▄▄▄▄
?被動收入?累積財富??英國買樓退休?錢搵錢 話咁易❓
https://youtu.be/8KIrDTwMX1A
?保命必睇⚠️政府公然搶錢?銀紙快速貶值50%?
https://youtu.be/Q6d9bhJOu9U
?住英國?香港經典食物日日有?腸粉?魚旦?臘腸 中超重有乜嘢?
https://youtu.be/Ft4a2xTu-_s
?科興疫苗?你懂的?2021年必賺?復甦股?你一定要知道! biontech 掂曬
https://youtu.be/Hs_H5zJg4qs
Detail of the competition for the audience:
The Competition is organized by the Reality Games, run by Reality Games (London) Ltd, located at Office 212, 15 Ingestre Place, Soho, London W1F 0JH, Great Britain, tax ID: GB199678519, company number: 08983817. („Organizer").
The Organizer declares that the Competition is in no way sponsored, endorsed, managed, or associated with the entities managing or owning the Youtube.com social network through which the Competition can participate. These entities do not bear the news in time to listen to the Competition on the claims of course participants for the position of the regulations.
Employees of the Organizer and other entities directly involved in the preparation and conduct of the Competition at the request of the Organizer, as well as members of the immediate families of these persons, cannot participate in the Competition. By members of the immediate family, it is understood: ascendants, descendants, siblings, spouses, siblings, parents, relatives, and relatives of the second degree as well as persons in the relationship of adoption.
A person who entered the Competition in accordance with the provisions of these Regulations becomes a participant of the Competition (hereinafter: Participant).
The competition runs from 21st of March 2021 to 4th of March 2021 until 23:59. The competition will be adjudicated on 5th April 2021.
By entering the competition, you accept these Regulations.
1. The goal is to achieve the highest empire value possible in two weeks' time.
2. Every player must write a phrase “teamcoco” in their in-game name.
Ex. playername_teamcoco
3. The First rule is to download Landlord Go through the affiliate link. (Player will get 1M cash if they download the game through the link).
4. The minimum empire value is 10M. Below this level players won’t be taken into consideration.
5. The competition will last 2 weeks
6. Day after the competition ends is on the 5th of March 2021, we will select the winner with the highest empire value and check whether she/he has met the necessary condition, which is to obtain a minimum 10M empire value.
7. The influencers will announce the results of the competition in the IG story after 2 weeks after the release of the contest announcement video. It is on the 5th of March.
8. The competition is only for the players who register in the game from the 21st of March 2021
9. If two players at the end of the competition get the same highest empire value the winner is the person who gets that value in a shorter time.
10. The reward will be sent at the Organiser's expense to the address indicated by the Participant within 30 working days from the end of the competition.
11. Influencer will announce the results of the competition on the 5th of April on his Instagram.
11. The Organizer is not responsible for the inability to transfer the prize for reasons attributable to the Participant, and in particular in the case of: failure to provide address data, providing incorrect, outdated, or incomplete address data.
12. The reward for the winner will be getting USD100 cash.
13. The reward for second place will be getting a package of 6500 coins in Landlord GO which is worth 50 $ in real life.
14. All complaints regarding the manner of conducting the Competition should be submitted by the Participants to the Organizer in writing.
A written complaint should include the name and full address of the Participant, as well as a detailed description and the reason for the complaint. Complaints will be considered immediately, but not later than within 14 days from the date of their receipt by the Organiser.

select value 在 謙預 QianyuSG Youtube 的最讚貼文
沒有人結婚,是為了離婚。
但是有些人的婚禮是天堂,婚姻卻是地獄。
到底擇日結婚是否可以改變一段婚姻的未來?
如果當初因緣不足,沒在好日子共結連理,而現在又過得不開心,如何可以補救悲劇的延伸?
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Nobody marries to get divorced. But for some people, their weddings are heavenly while their marriages are like hell.
Could an auspicious date selection have helped the fortunes of a marriage?
If you fail to get married on an auspicious date, due to circumstances, and now you are in an unhappy marriage, what can you do now to salvage the marriage?
******************************
阿彌陀佛,你好!我是李季謙,來自新加坡的風水命理師。我將我的一生貢獻於弘揚佛法和中華玄學。這過程曲折離奇,卻也充滿了許多人生的領悟。
通過我的影音與寫作,我希望能與你分享,盼你也能夠突破自己命運的束縛,真正活得精彩:我命在我,不在天。
人生長短無所謂,最重要的是活得有價值,有貢獻。
***********
Hi, I am Lee Ji Qian, a Chinese Metaphysics practitioner from Singapore. This journey in propagating Buddhism and Chinese Metaphysics has been full of hard knocks and exciting discoveries.
Through my videos and online writing, I hope to share my journey with you. So that you too can break free from the limits of your destiny and truly live a life you can call exciting. My destiny is in my own hands, not Heaven. So is yours.
It does not matter whether we can live a long or short life.
What matters most is living a life of value and contribution.
??? 服務諮詢 FOR MY SERVICES:
http://www.qianyu.sg/consultations
? CONNECT WITH ME HERE:
http://www.facebook.com/qianyuSG
https://www.instagram.com/qianyusg/
*** 我使用的器材 OTHER TECH EQUIPMENT I USE ***
這支影片 FOR THIS VIDEO:
Iphone 6
Wide Angle Selfie Ring Light
3-in-1 Monopod: https://amzn.to/2rJ1M03
Royal Voice Lavalier Mic (out of production)
but this comes close : https://amzn.to/2pmj7Ly
相機 CAMERAS
Sony A6400: https://amzn.to/33NLssT
Sony 128GB SD card: https://amzn.to/2NKv6vw
Rode Videomicro : https://amzn.to/350TZsW
Sony Mark III: https://amzn.to/2qOne3g
128GB SD card: https://amzn.to/2Qfnl2n
有聲書錄音器材 AUDIOBOOK RECORDING
Neumann T102: https://amzn.to/34XuFE3
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Portabooth Plus: https://amzn.to/33MyBHE
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Nitecore charger for A6400: https://amzn.to/2Qfo8QT
Extra Sony A6400 battery: https://amzn.to/2Kh3oo8
********************************
Music:
––––––––––––––––––––––––––––––
Light by Jorge Mendez https://youtu.be/52509xgZKDI
Lights by Sappheiros https://soundcloud.com/sappheirosmusic
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
Free Download / Stream: https://bit.ly/LightsSappheiros
Music promoted by Audio Library https://youtu.be/-lbbHQbZNKg
––––––––––––––––––––––––––––––

select value 在 Adam Syaakir AS Youtube 的最佳解答
In this episod, I`m going to share how i edit my photos in Lightroom.I decided to share with you how to edit my photo tone and how to enlarge your photo from crop looks to much wider . This is a great style if you want to create some stunning photo edits for your instagram page.
This edit is perfect if you want to achieve and getting more creative by use your skill to boost your instagam page, make an incredible feed and grow your followers.
Hey guys and welcome back to another video, so todays video is another update on how to edit in Lightroom and Photoshop.Some of you wanted to see how to edit this kind of minmal or jumping style photos at sand dune, So thats what I are going to be doing today,
Gear I use : Canon 5d mark ii + Canon 85mm f/1.8
_________________________________________________________________
I`m so sorry, actually i spotted some mistake during screen recording on Lightroom and Photoshop, so here goes the step by ste :-
Lightroom:
1.Import your photo
2.Go to develop
3.Adjust setting like i do in my tutorial
4.Crop your photo into 4:5 (Instagram post)
5.Export and Save your photo.
Photoshop :
1. Check your photo details (Width X Height) ; my photo is 3642pixels (width) X 4553pixels (height)
2.Select NEW section in Photoshop (Ps)
3.Add a value 600 to every value of width and length. (Eg:- 3642pix+600= 4242pix & 4553pix+600= 5153pix).Click OK
4.Follow the following step that I show in my video.
5.Save as your photo and ready to posted in your Instagram page
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Welcome to my channel, this is a channel for photo editing and my life experience, if you have any ideas for videos feel free to contact me by sending a DM on our Instagram:
https://www.instagram.com/adamsyaakir_/
https://www.instagram.com/commonground.foto/
https://www.facebook.com/Commonground.foto/
BUSINESS ENQUIRIES: adamcoroly@gmail.com
[email protected]
#PHOTOSHOP
#LIGHTROOM
#MALAYSIA
#INSTAGRAM
#HOWTOEDITLIKEAPRO
#LIGHTROOMEDITING
#ADOBE
#PHOTOSHOP

select value 在 Value Select - YouTube 的推薦與評價
With the aid of the Patreon Brotherhood (and Hollywood Director Stephen Spielberg), Value Select must brandish that very companion gauntlet ("The Glove of ... ... <看更多>
select value 在 ng-select/ng-select: Native angular select component - GitHub 的推薦與評價
A function to compare the option values with the selected values. The first argument is a value from an option. The second is a value from the selection(model). ... <看更多>
select value 在 Get selected value in dropdown list using JavaScript - Stack ... 的推薦與評價
... <看更多>