想要選取特定型別的欄位
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SELECT COLUMN_NAME, DATA_TYPE,CHARACTER_MAXIMUM_LENGTH
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'yourTableName'
AND DATA_TYPE = 'datetime'
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想要選取特定型別的欄位
-----
SELECT COLUMN_NAME, DATA_TYPE,CHARACTER_MAXIMUM_LENGTH
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'yourTableName'
AND DATA_TYPE = 'datetime'
-----