1. This document provides a tutorial on using MySQL. 2. It covers topics like selecting data, using WHERE clauses with operators like AND and OR, joining tables, aggregating with functions like COUNT and SUM, and grouping data. 3. Examples are given using tables like shop_order and shop_order_item to demonstrate how to query and analyze order data from an online shop.

1. 䝜䞁䜶䞁䝆䝙䜰䛾Ⅽ䛾
MySQLຮᙉ఍ ➨2ᅇ
2014/8/15
Yuta Tonegawa

2. ୍㐃䛾䜹䝸䜻䝳䝷䝮
1. 䛸䜚䛒䛘䛪ゐ䛳䛶䜏䜛 (8/8)
2. 䛣䛰䜟䜚䛳䛶ฟຊ䛧䛶䜏䜛 (8/15) <- ௒᪥

3. ௒᪥䛾䜰䝆䜵䞁䝎
1. ๓ᅇ䛾䛚䛥䜙䛔
2. SELECT ᩥ
3. WHERE ᩥ (AND, OR, LIKE, IN, BETWEEN)
4. 䝔䞊䝤䝹⤖ྜ
5. 㛵ᩘ (COUNT, SUM, YEAR, MONTH)
6. 㞟ィ (GROUP)

4. ௒᪥䛾┠ᶆ
᭶ู䛾኎ୖ䠋௳ᩘ䜢୍Ⓨฟຊ

5. 1.๓ᅇ䛾䛚䛥䜙䛔
phpMyAdmin 䛸䛔䛖䝒䞊䝹䛷䝕䞊䝍䝧䞊䝇䜢┤᥋ぢ䜎䛩
https://raksul.com/phpmyadmin/
user ⮬ศ䛾䝴䞊䝄䞊ྡ
pass ********
䝻䜾䜲䞁ᚋ䚷ᕥୖ䛾 raksul 䜢㑅ᢥ䛧䛶䛟䛰䛥䛔

6. 1.๓ᅇ䛾䛚䛥䜙䛔
ୗ䛾䛂䜶䜽䝇䝫䞊䝖䛃
䜶䜽䝇䝫䞊䝖᪉ἲ䛂ヲ⣽䛃
䝣䜷䞊䝬䝑䝖䛂CSV䛃
୍⾜┠䛻䜹䝷䝮ྡ䜢㏣ຍ䛩䜛 䛂䝏䜵䝑䜽䛃
UTF8ᙧᘧ䛺䛾䛷㛤䛟᫬ὀព

7. 2.SELECTᩥ
8᭶䛾 shop_order 䛾䛔䛟䛴䛛䛾㡯┠䜢⾲♧䛧䛶䜏䜎䛧䜗䛖䚹
SELECT ← ⾲♧
`user_id` , `receipt_num` , `total_price` , `paid_amount` ←䜹䝷䝮(ิ)ྡ
FROM `shop_order` ← 䝔䞊䝤䝹ྡ
WHERE `create_time` > '2014-08-01 00:00:00' ←䝣䜱䝹䝍᮲௳
LIMIT 0 , 30 ←⾲♧⠊ᅖ

8. 3.WHERE⠇
SELECT ← ⾲♧
`user_id` , `receipt_num` , `total_price` , `paid_amount` ←䜹䝷䝮(ิ)ྡ
FROM `shop_order` ← 䝔䞊䝤䝹ྡ
WHERE `create_time` > '2014-08-01 00:00:00' ←䝣䜱䝹䝍᮲௳
LIMIT 0 , 30 ←⾲♧⠊ᅖ
ᑐ㇟䛸䛺䜛䛂⾜䛃䜢䝣䜱䝹䝍䛧䜎䛩䚹

9. 3.WHERE⠇
AND 2䛴䛾᮲௳䛜୧᪉ᙜ䛶䛿䜎䜛䜒䛾䛻䝣䜱䝹䝍
WHERE `user_id` =2
AND `create_time` > '2013-08-01 00:00:00'
OR 2䛴䛾᮲௳䛾䛔䛪䜜䛛䛻ᙜ䛶䛿䜎䜛䜒䛾䛻䝣䜱䝹䝍
WHERE `user_id` =2
OR `create_time` > '2013-08-01 00:00:00'

10. 3.WHERE⠇
IN 䛔䛪䜜䛛䛻ᙜ䛶䛿䜎䜛
WHERE `user_id` IN (1,2,3)
LIKE ᩥᏐิẚ㍑
WHERE `c_name` LIKE ‘’
BETWEEN ~䛸~䛾㛫
WHERE `create_time` BETWEEN ‘2014-08-01 00:00:00’ AND ‘2014-08-13 23:
59:59’

11. 㛩ヰఇ㢟
䜶䝷䞊⏬㠃䛜ฟ䛯䟿

12. 㛩ヰఇ㢟

13. 㛩ヰఇ㢟
䜶䝷䞊䝯䝑䝉䞊䝆䛾ⱥㄒ䛿㞴䛧䛟䛺䛔
near 䛒䛯䜚䜢ぢ䜜䜀OK

14. 4.䝔䞊䝤䝹⤖ྜ
SELECT * <- ඲䜹䝷䝮
FROM `shop_order` , `shop_order_item` <- 」ᩘ䝔䞊䝤䝹ᣦᐃ
WHERE `shop_order`.`order_id` = `shop_order_item`.`order_id` <-⤖ྜ᮲௳

15. 5.㛵ᩘ
SELECT
COUNT( `order_id` ) , <- ௳ᩘ
SUM( `total_price` ) <- ྜィ
FROM `shop_order`
WHERE `create_time` > '2014-08-01 00:00:00'

16. 5.㛵ᩘ
SELECT
`order_id` ,
YEAR( `create_time` ), <- YEAR
MONTH( `create_time` ) <- MONTH
FROM `shop_order`

17. 5.㛵ᩘ
SELECT
`order_id` ,
YEAR( `create_time` ) AS y,
MONTH( `create_time` ) AS m
FROM `shop_order`

18. 6.㞟ィ
SELECT
YEAR( `create_time` ) AS y,
MONTH( `create_time` ) AS m,
SUM( `total_price` ) ,
COUNT( `order_id` )
FROM `shop_order`
GROUP BY y, m ← 㞟ィิ䜢タᐃ

19. 䛚⑂䜜ᵝ䛷䛧䛯