如何将表数据导出到日期为“今天”的CSV

Question

I am hoping someone can help with this i am trying to export data daily from a table ie Columns: Title, Date, Count into a csv what would be the sql query for this?

SELECT 'Title', 'Date', 'Count'
UNION ALL
SELECT Title,Date,Count
FROM sales_com
INTO OUTFILE 'U:/CSV-LiveDB-Upload/sales_com/Data.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '\"'
LINES TERMINATED BY '\r\n';

The above is what i am using to export the whole result set which works but i cant figure out how to export by today's date. Say i run this as a task each night to export the results for 'today' something down the lines of where date 'today'

Thanks.

Answer 1

SELECT 'Title', 'Date', 'Count'
UNION ALL
SELECT Title,Date,Count
FROM sales_com
WHERE Date >= to_date('2004/01/01', 'yyyy/mm/dd')
AND Date <= to_date('2004/12/31','yyyy/mm/dd');
INTO OUTFILE 'U:/CSV-LiveDB-Upload/sales_com/Data.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '\"'
LINES TERMINATED BY '\r\n';

Answer 2

If you're simply running the SQL script and don't want to pass parameters in from a controlling application, you can use one of the date functions mentioned here .

Assuming the "Date" column is of type "DATE", using CURDATE() in your WHERE clause should work.

Your SQL script would look something like:

SELECT 'Title', 'Date', 'Count'
UNION ALL
SELECT Title,Date,Count
FROM sales_com
WHERE Date = CURDATE()
INTO OUTFILE 'U:/CSV-LiveDB-Upload/sales_com/Data.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '\"'
LINES TERMINATED BY '\r\n';