here is a sql table: CREATE TABLE alive (id, partition_date COMMENT 'date', group_id COMMENT 'group id', group_name COMMENT 'group name', product_id COMMENT 'product id', product_name COMMENT 'product name', vercode COMMENT 'version', manuf2 COMMENT 'manufactor', ov2 COMMENT 'os', chanid2 COMMENT 'channel', new_uv COMMENT 'new', dau COMMENT 'dau', conn_uv COMMENT 'count of connecting devices', conn_suc_uv COMMENT 'count of connected devices', conn_suc_ratio COMMENT 'rate of connect devices', new_retain_ratio_in2d COMMENT 'the count of open app' PRIMARY KEY (id) ). write a sql to show the trend of dau in one month Your response should contain less than 100 words.
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