質問編集履歴
4
訂正、うまくできました
title
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File without changes
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body
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@@ -65,17 +65,7 @@
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65
65
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)
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66
66
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```
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67
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68
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-
```SQLite
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69
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-
/* 応答がなくなり、ハングアップ状態 */
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70
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-
UPDATE contract
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71
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-
SET count = (
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72
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-
SELECT MAX(b.bill_count)+1
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73
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-
FROM bill as b
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74
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-
WHERE contract.id = b.contract_id
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75
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-
)
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68
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77
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-
```
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78
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-
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79
69
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```SQLite
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80
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/* Error no such column: b.contract_id */
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71
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UPDATE contract
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3
試したことを追加
title
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File without changes
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body
CHANGED
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@@ -66,6 +66,17 @@
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66
66
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```
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67
67
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68
68
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```SQLite
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69
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+
/* 応答がなくなり、ハングアップ状態 */
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70
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+
UPDATE contract
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71
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+
SET count = (
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72
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+
SELECT MAX(b.bill_count)+1
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73
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+
FROM bill as b
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74
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+
WHERE contract.id = b.contract_id
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75
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+
)
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76
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+
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77
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+
```
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78
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+
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79
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+
```SQLite
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69
80
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/* Error no such column: b.contract_id */
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70
81
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UPDATE contract
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71
82
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SET count =
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2
試してみたクエリー
title
CHANGED
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File without changes
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body
CHANGED
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@@ -12,7 +12,7 @@
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12
12
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13
13
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14
14
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アップデートのため下記のようなSQLを書きました
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15
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-
```
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15
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+
```SQLite
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16
16
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UPDATE c
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17
17
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SET count = MAX(b.bill_count)+1
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18
18
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FROM contract AS c
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@@ -25,7 +25,7 @@
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25
25
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26
26
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27
27
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selectによる表示は目的通り出力されます
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28
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-
```
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28
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+
```SQLite
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29
29
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SELECT c.*,MAX(b.bill_count)+1
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30
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FROM contract as c
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31
31
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LEFT JOIN bill as b
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@@ -35,4 +35,45 @@
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35
35
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```
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36
36
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37
37
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FROM周辺に問題があるようなのですが、どのように修正すればよいか分からずにいます。
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38
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-
よろしくおねがいします。
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38
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+
よろしくおねがいします。
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39
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+
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40
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+
==追記（他に試した方法）==
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41
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+
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42
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+
```SQLite
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43
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+
/* 同じデータで埋められてしまいます */
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44
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+
UPDATE contract
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|
45
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+
SET count = (
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46
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+
SELECT MAX(b.bill_count)+1
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47
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+
FROM contract as c
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48
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+
LEFT JOIN bill as b
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49
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+
ON c.id = b.contract_id
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50
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+
WHERE c.status <> '1'
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51
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+
GROUP BY b.contract_id
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52
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+
)
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53
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+
```
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54
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+
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55
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+
```SQLite
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56
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+
/* 応答がなくなり、ハングアップ状態 */
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57
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+
UPDATE contract
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58
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+
SET count = (
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59
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+
SELECT MAX(b.bill_count)+1
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60
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+
FROM contract as c
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61
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+
LEFT JOIN bill as b
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62
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+
ON c.id = b.contract_id
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63
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+
WHERE contract.id = b.contract_id
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64
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+
GROUP BY b.contract_id
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65
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+
)
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66
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+
```
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67
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+
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68
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+
```SQLite
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|
69
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+
/* Error no such column: b.contract_id */
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|
70
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+
UPDATE contract
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|
71
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+
SET count =
|
|
72
|
+
(
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73
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+
SELECT MAX(b.bill_count)+1
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|
74
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+
FROM bill as b
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|
75
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+
GROUP BY b.contract_id
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|
76
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+
)
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77
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+
WHERE id = b.contract_id
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|
78
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+
/* b.contract_id を bill.contract_id にするとエラーは bill.contract_id */
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79
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+
```
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1
誤字の修正
title
CHANGED
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File without changes
|
body
CHANGED
|
@@ -14,7 +14,7 @@
|
|
|
14
14
|
アップデートのため下記のようなSQLを書きました
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|
15
15
|
```sql
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|
16
16
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UPDATE c
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|
17
|
-
SET count = MAX(
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17
|
+
SET count = MAX(b.bill_count)+1
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18
18
|
FROM contract AS c
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19
19
|
LEFT JOIN bill AS b
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|
20
20
|
ON c.id = b.contract_id
|