如何从SQL Server中的SELECT更新? [英] How do I UPDATE from a SELECT in SQL Server?
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问题描述
在 SQL Server 中,可以使用SELECT
语句将INSERT
插入表中:
In SQL Server, it is possible to INSERT
into a table using a SELECT
statement:
INSERT INTO Table (col1, col2, col3)
SELECT col1, col2, col3
FROM other_table
WHERE sql = 'cool'
是否还可以通过SELECT
进行更新?我有一个包含这些值的临时表,并想使用这些值更新另一个表.也许是这样的:
Is it also possible to update via a SELECT
? I have a temporary table containing the values and would like to update another table using those values. Perhaps something like this:
UPDATE Table SET col1, col2
SELECT col1, col2
FROM other_table
WHERE sql = 'cool'
WHERE Table.id = other_table.id
推荐答案
UPDATE
Table_A
SET
Table_A.col1 = Table_B.col1,
Table_A.col2 = Table_B.col2
FROM
Some_Table AS Table_A
INNER JOIN Other_Table AS Table_B
ON Table_A.id = Table_B.id
WHERE
Table_A.col3 = 'cool'
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