[英]MySQL set column as CONCAT of other columns in the same table on INSERT?
[英]PHP/MySQL Concat to a single column and Update other columns in table
我試圖只對列updates
新的更新並更新其余列中的值,但我已經看到了一些我似乎無法鍛煉的障礙。
我的SQL看起來像這樣:
$query="Update tickets SET product='$product',
p='$p',
i='$i',
summary='$summary',
workaround='$workaround',
concat(updates,'$additional_update'),
status='$status',
raised_by='$raised_by',
updated_by_user='$updated_by' WHERE id='$id'";
updates
列類似於注釋列,其中新更新將附加到現有文本。
我在網絡服務器上得到的錯誤:
Update tickets SET product='T-Box', p='00000817766', i='-', summary='Testing update field
\r\nAdding an update\r\ntesting if null works for update', workaround='n/a', concat(updates,' ','test2@18:53:17:second update/n'), status='Open', raised_by='No', updated_by_user='test2' WHERE id='223'
直接在MySQL中運行查詢:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(updates,'test2@18:53:17:second update/n'), status='Open', raised_by='No', updat' at line 1
非常感謝幫助!
您需要指定要設置此語句concat(updates,'$additional_update')
值的位置。
Update tickets
SET product = '$product',
p = '$p',
i = '$i',
summary = '$summary',
workaround = '$workaround',
updates = CONCAT(updates,'$additional_update'), // <== see this
status = '$status',
raised_by = '$raised_by',
updated_by_user = '$updated_by'
WHERE id = '$id'
嘗試這個:
$query="Update tickets SET product='$product',
p='$p',
i='$i',
summary='$summary',
workaround='$workaround',
updates=concat(updates,'$additional_update'),
status='$status',
raised_by='$raised_by',
updated_by_user='$updated_by' WHERE id='$id'";
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