[英]sql concatenation
Can I concatenate queries like below? 我可以连接如下查询吗? If no, how should I proceed?
如果没有,我应该如何进行? I don't want to read rows from
$retrieveUnitExist
as it waste another step. 我不想从
$retrieveUnitExist
读取行,因为这浪费了另一步。
$retrieveUnitExist = "SELECT unitid FROM ESTATEUNIT WHERE BLOCK = 1";
$insertAddress = "INSERT INTO ADDRESS (value1, value2) VALUES ('1','".$retrieveUnitExist."')";
mysqli_query($conn, $insertAddress);
Something like this? 像这样吗
$insertAddress = "INSERT INTO ADDRESS (value1, value2)
SELECT '1', unitid FROM ESTATEUNIT WHERE BLOCK = 1";
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