加入更新时收到错误,语法不正确
Error received on join update, incorrect syntax
我在 MySQL 中收到以下 SQL 错误,我不确定为什么。我是 MySQL.
的新手
UPDATE I
SET I.user_comments = DD.value
FROM
redcap_user_information I
JOIN redcap_data D ON D.value = I.user_email AND D.project_id = 439 AND D.field_name = 'email'
JOIN redcap_data DD ON DD.record = D.record AND DD.project_id = 439 AND DD.field_name = 'irb'
WHERE
user_comments IS NULL
AND allow_create_db = 1
AND user_suspended_time IS NULL
ORDER BY I.user_email
错误是
Error Code: 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 'FROM
redcap_user_information I
JOIN redcap_data D ON D.value = I.use'
任何人都可以解释一下吗?
不确定连接部分的逻辑,但使用连接更新的正确语法是
update redcap_user_information I
JOIN redcap_data D ON D.value = I.user_email AND D.project_id = 439 AND D.field_name = 'email'
JOIN redcap_data DD ON DD.record = D.record AND DD.project_id = 439 AND DD.field_name = 'irb'
set I.user_comments = DD.value
WHERE
user_comments IS NULL --- use the table alias name to access the column
AND allow_create_db = 1 --- use the table alias name to access the column
AND user_suspended_time IS NULL --- use the table alias name to access the column
我在 MySQL 中收到以下 SQL 错误,我不确定为什么。我是 MySQL.
的新手UPDATE I
SET I.user_comments = DD.value
FROM
redcap_user_information I
JOIN redcap_data D ON D.value = I.user_email AND D.project_id = 439 AND D.field_name = 'email'
JOIN redcap_data DD ON DD.record = D.record AND DD.project_id = 439 AND DD.field_name = 'irb'
WHERE
user_comments IS NULL
AND allow_create_db = 1
AND user_suspended_time IS NULL
ORDER BY I.user_email
错误是
Error Code: 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 'FROM
redcap_user_information I
JOIN redcap_data D ON D.value = I.use'
任何人都可以解释一下吗?
不确定连接部分的逻辑,但使用连接更新的正确语法是
update redcap_user_information I
JOIN redcap_data D ON D.value = I.user_email AND D.project_id = 439 AND D.field_name = 'email'
JOIN redcap_data DD ON DD.record = D.record AND DD.project_id = 439 AND DD.field_name = 'irb'
set I.user_comments = DD.value
WHERE
user_comments IS NULL --- use the table alias name to access the column
AND allow_create_db = 1 --- use the table alias name to access the column
AND user_suspended_time IS NULL --- use the table alias name to access the column