What is the code selection in Guotai 'an database used for?

It's csmar, right? Now they are developing the Central Library, which is a brand-new database product.

Enter official website, Tai 'an in the browser. There are three ways to access the database when entering the homepage of Guotai 'an Data Service Center. We generally suggest that you directly click on the required database name and then jump to the corresponding page. After entering the new page of the transaction database, select a subordinate classification to extract data, such as "Daily Data" under the classification of the transaction database. Select the stock code you need, select the time interval of the data you need, check the field, and there are instructions at the top of the page. Select the file format and download the database file.