Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
2018-11-データベース / 2018-11 database
Search
Cybozu
PRO
July 17, 2018
Programming
42k
6
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
2018-11-データベース / 2018-11 database
データベースの概要を知る。
データベースに求められる特性を知る。
SQLの概要を把握する。
自分でSQLを書けるようになる。
Cybozu
PRO
July 17, 2018
More Decks by Cybozu
See All by Cybozu
サイボウズ 開発本部採用ピッチ / Cybozu Engineer Recruit
cybozuinsideout
PRO
12
96k
新卒1年目QAが リリース基準の"なぜ"をたどってみた
cybozuinsideout
PRO
1
990
kintone リサーチ副部/UXリサーチャー 業務紹介
cybozuinsideout
PRO
0
220
私たちが『JaSST協賛』から『外部コネクト』チームになった理由
cybozuinsideout
PRO
0
640
LLMでもいつものテスト技術〜意外と半分はこれまでのテストでした〜
cybozuinsideout
PRO
1
1.2k
kintone開発のプラットフォームエンジニアの紹介
cybozuinsideout
PRO
1
1.8k
LLMアプリの品質保証
cybozuinsideout
PRO
1
920
技術広報チームに丸投げしない!「一緒につくる」スポンサー活動
cybozuinsideout
PRO
0
330
テクニカルライター (グループウェア) について
cybozuinsideout
PRO
0
330
Other Decks in Programming
See All in Programming
graphql-ruby を Spinel で速くしようとした話
mtsmfm
0
140
小さなアプリを作って公開するまで
onozaty
0
140
조합이폭발하는디자인시스템이걸눈으로도테스트하라고요
giljongyu
0
730
Kawaiicon: Kubernetes, it's no longer cool, but let's secure it anyway!
barnbarn
0
110
Web3Dライブラリを作ってVue Custom Rendererの仕組みを理解しよう / lets learn vue custom renderer by making 3d library
drumath2237
1
130
Zero-Tap Sign-In対応、結局何をすればいいの?
mitohato14
0
1.8k
動画プレイヤーはなぜカクつくのか 〜Flutterのレンダリングとネイティブの境界を解剖する〜
naruogram
0
330
Lambda durable functionsでHuman in the Loopを楽に…楽に……
har1101
2
290
Python Lambdaにおけるテストしやすい設計とAI支援の活用 / Designing Testable Python Lambda Functions with AI
kitano_yuichi
1
300
PyConTW 2026 - AI Coding 不只是工具升級, 區域醫院醫療資訊系統協作開發與資訊團隊轉型實踐
cclai999
0
240
SODA - FACT BOOK(EN)
sodainc
1
210
Vapor Mode でアクセシビリティは 壊れないか検証した話
fuqda
1
330
Featured
See All Featured
Organizational Design Perspectives: An Ontology of Organizational Design Elements
kimpetersen
PRO
1
880
Mozcon NYC 2025: Stop Losing SEO Traffic
samtorres
1
600
How to make the Groovebox
asonas
2
2.5k
Designing Powerful Visuals for Engaging Learning
tmiket
1
650
Ten Tips & Tricks for a 🌱 transition
stuffmc
1
280
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
659
62k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
31
3.4k
From Legacy to Launchpad: Building Startup-Ready Communities
dugsong
0
370
Scaling GitHub
holman
464
140k
The World Runs on Bad Software
bkeepers
PRO
72
12k
Game over? The fight for quality and originality in the time of robots
wayneb77
1
330
HTML-Aware ERB: The Path to Reactive Rendering @ RubyCon 2026, Rimini, Italy
marcoroth
5
910
Transcript
! !
%! $'" #( &
()
EL C l
X l C N D P l AQ S C I I I AQ
& %# ( "'"$ ! '
l l l
l l / l /
!%0 ! %0
l 75) +42 l # 1-&( l ' *3 $,6. / "
A C C l
l l D I
l
23 23 23 23 23 23 51 .
0 4
0 0 0 0 0 0 2.34 1 10
! = A l ( ) A )
1 B2 A B l 5 B
l 9 0 l 9 l 9 9 5 93
9 541 54 0 12 9 541 54
. 13 9 = 0 6 2 3 53 54 0 1 2
= l ) ) ) ) l
( I
- l ) ) ) l
l l ) ( l ( l (
V PfdcK S l CD B .)
,B 4 .) B B l 4G 4 OR G .) aMN , 4D D C l eQ , 4 Rb , 4D D C aMN L B D C l ( G D B l C 4 4 GB 4 C 4 D D B l 4
)( 3 4 1 2
- 0 7
)( 2 l 0 7 - 1 l
0 43 l 2
:- 3 0 1 l 47 2 0
D D I
n l o D1B l l a
o ( ) ( B R a R i e R B 1
)( (
C ) ( ) ) l l
L ) ) ) (/ ( l D (/ ( l
E C l E C L , ( R
l E C PS ), R l E C IN R l E C ( R E C D : A :
0/. -73394 l e atQ0/.
qL QF d S c i l 6 ## 9 73394 2 :# # 1 l k 0/. s Q q p ! ! ! ! n o ! ! fhm 7 4l belong_to organization employee
- l
SELECT [] FROM [ ]; SELECT name FROM employee;
- * l * SELECT * FROM employee;
- l SELECT [ 21 ] FROM [
0 ] WHERE []; SELECT * FROM employee WHERE joined_at >= '2010/1/1';
- ] a l [ _ d 1 ./
5 75 .7 :/05 6 /6 / :/ 276 1 5 joined_at > '2007/1/1' 726/. _ ' name = '' 6 5/ _ c e id <> 10001 2. _
- iNO f ( rL ) rL !=
ds ) nI K )( ( c , tvap . ul moh q eT ./ . ul moh q eT E6 < = > 5 : : 5 : : 6
name LIKE '%%'; % ' % l l
l l l l
) ) ( % l name LIKE
'%¥%%' ( '
- l id IN (10001, 10003) l
- 41 l l l 0 2
0 SELECT * FROM employee WHERE joined_at >= '2010/1/1' AND joined_at <= '2014/1/1';
1 1
- D E l E ) E l AE E
l C C( E D l SELECT [ ] FROM [ ] ORDER BY [ ] [ASC/DESC]; SELECT * FROM employee ORDER BY joined_at ASC;
l l 2 SELECT [ ] FROM [
ORDER BY [ ] [ASC/DESC] LIMIT []; SELECT * FROM employee ORDER BY joined_at ASC LIMIT 2; SELECT * FROM employee ORDER BY joined_at ASC LIMIT 1, 2;
#$ % ) l "
! SELECT [&'] FROM [(] GROUP BY []; SELECT organization_id, COUNT(*) FROM belong_to GROUP BY organization_id;
) * ( * ) * ( * ) *
( * 3 4 12 GROUP BY org_id SELECT org_id, COUNT(*) 0 0 2 3 4 1 ) *
l ) ( )
15 0 I a D l 678 047 2
a l 3 66 2 l 506837 d_ 9 : l _ l g d l ed l ced grade
SELECT class_id, COUNT(*), AVG(result), MAX(result), MIN(result) FROM grade GROUP BY
class_id;
B O RO l U H E l G
P
l SELECT * FROM [ ] GROUP BY
[ 2 ] HAVING []; SELECT organization_id, COUNT(*) AS num FROM belong_to GROUP BY organization_id HAVING num >= 2;
GROUP BY org_id SELECT org_id, COUNT(*) 0 1 3 HAVING num >= 2 2 4
" $ ! #%
- 3 4 1 2
- 0 7 - 0 3 - 0 4 7 1 2
- SELECT organization.name, employee.name FROM belong_to INNER JOIN organization ON
belong_to.organization_id = organization.id INNER JOIN employee ON belong_to.employee_id = employee.id;
-
belong_to organization " $%"!# … belong_to INNER JOIN organization ON belong_to.organization_id = organization.id …
- . . .
… belong_to INNER JOIN organization ON belong_to.organization_id = organization.id …
- . . . 143 2 0 … belong_to INNER
JOIN organization ON belong_to.organization_id = organization.id INNER JOIN employee ON belong_to.employee_id = employee.id;
-
SELECT organization.name, employee.name FROM belong_to INNER JOIN organization ON belong_to.organization_id = organization.id INNER JOIN employee ON belong_to.employee_id = employee.id;
- ( "!&%$ ' %#& l "!&%#&
l "!&%$ ' %#& SELECT MAX(result) FROM grade; SELECT AVG(result) FROM grade WHERE result <> [];
- 1 SELECT AVG(result) FROM grade WHERE result <>
(SELECT MAX(result) FROM grade);
- > l < l < l <
SELECT class_id, MAX(result) FROM grade GROUP BY class_id; SELECT class_id, AVG(result) FROM grade WHERE (class_id = 1 AND result <> [1 ]) OR (class_id = 2 AND result <> [2 ]) OR … GROUP BY class_id;
- 1 1 SELECT class_id, AVG(result) FROM grade
AS g1 WHERE g1.result <> ( SELECT MAX(result) FROM grade AS g2 WHERE g1.class_id = g2.class_id ) GROUP BY class_id;
SELECT class_id, AVG(result) FROM grade AS g1 WHERE [] GROUP BY class_id;
6 63
8 3 9 7 0 2 1 5 4 g1 SELECT class_id, AVG(result) FROM grade AS g1 WHERE [] GROUP BY class_id;
1 g1
WHERE g1.result <> ( SELECT MAX(result) FROM grade AS g2 WHERE g1.class_id = g2.class_id )
g1 g2 WHERE g1.result <> ( SELECT MAX(result) FROM grade AS g2 WHERE g1.class_id = g2.class_id )
.
g2 g1 WHERE g1.result <> ( SELECT MAX(result) FROM grade AS g2 WHERE g1.class_id = g2.class_id )
MAX(result)
g2 g1 WHERE g1.result <> ( SELECT MAX(result) FROM grade AS g2 WHERE g1.class_id = g2.class_id )
36 4215 0
g2 g1 WHERE g1.result <> 100
g1 1 89 B 4 3 0 2 6 753
& Q & E C L
& Q
INSERT INTO [
] ([ ]) VALUES ([]); INSERT INTO employee (id, name, joined_at) VALUES (10001, '', '2013/04/01'), (10002, '', '2014/04/01'), (10003, '', '2007/04/01');
$# " %
! & UPDATE [ ] SET [ ] = [ ] WHERE [ ]; UPDATE employee SET joined_at = '2007/4/2' WHERE id = 10003;
DELETE
FROM [] WHERE []; TRUNCATE []; DELETE FROM [];
! !
Q l e j
c i l D P E S IC A l PX A L N N N D j
3 L : 88
Q . 4 666 0 721 2 /
& h M 1 0 S d L Q
M c a .774 888 1 : 2 /4 4
U B Ca B JF 2 26
N S 3 : / / 0 4: 1: .
9Q S : a L c
d : h .55 4 0 721 2 /