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
Sponsored
·
Your Podcast. Everywhere. Effortlessly.
Share. Educate. Inspire. Entertain. You do you. We'll handle the rest.
→
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
91k
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
900
kintone リサーチ副部/UXリサーチャー 業務紹介
cybozuinsideout
PRO
0
200
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
600
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
1.7k
LLMアプリの品質保証
cybozuinsideout
PRO
1
850
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
310
テクニカルライター (グループウェア) について
cybozuinsideout
PRO
0
310
Other Decks in Programming
See All in Programming
Agentic Software Factoryに、すごく賢いIF文を。 / super smart IF statement into the Agentic Software Factory.
rkaga
7
1.7k
Jetpack Compose Mechanisms
skydoves
2
200
AI時代のコードレビューは人に向けるな、仕組みに向けろ
texmeijin
5
3.4k
Are APIs Still Relevant in the AI Era?
soyuka
0
410
phperだってパンチカードでコーディングしたい
o0h
PRO
0
180
マイコン向けの軽量Ruby「PicoRuby」で各種デバイスを制御するネイティブアプリの実現手法
bash0c7
0
470
SREの越境 / SRE Collaboration
y0hgi
2
300
見えないものを探る要求要件定義に必要な基本的思考 / invisible-requirement-thinking
minodriven
12
5.9k
Starting & Sustaining Code-Based E2E Testing for Non-Coding QA Teams( #jasstniigata )
teyamagu
PRO
1
880
巨大モノリシックアプリ モダン化大作戦
ktcryomm
1
1.3k
Verilogで学ぶCPU自作入門.pdf
uyuki234
8
4k
パズルゲームの作り方 / how to make puzzle games
kaityo256
PRO
2
260
Featured
See All Featured
Navigating Algorithm Shifts & AI Overviews - #SMXNext
aleyda
1
1.6k
YesSQL, Process and Tooling at Scale
rocio
174
15k
Paper Plane (Part 1)
katiecoart
PRO
2
11k
How To Stay Up To Date on Web Technology
chriscoyier
790
250k
[SF Ruby Conf 2025] Rails X
palkan
3
1.4k
Skip the Path - Find Your Career Trail
mkilby
1
240
Joys of Absence: A Defence of Solitary Play
codingconduct
1
530
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
133
20k
BBQ
matthewcrist
89
10k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
33
5.1k
AI Search: Where Are We & What Can We Do About It?
aleyda
0
8k
Sam Torres - BigQuery for SEOs
techseoconnect
PRO
0
560
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 /