Data query method and device, computer equipment and storage medium

The invention discloses a data query method and apparatus, a computer device and a storage medium. The method comprises the steps: receiving a query request sent by a demander, wherein the query request carries a target data identifier; determining a data providing mode of the supplier front-end processor; when the data providing mode is database providing, detecting whether a supplier front-end processor locally has a data index corresponding to the target data identifier or not; if the data index corresponding to the target data identifier exists in the supplier front-end processor locally,obtaining target query data corresponding to the target data identifier from a supplier database; sending the target query data to a demander terminal, wherein the supplier front-end processor is coupled with a supplier database. Through the method, the security of the supplier database can be improved, and data leakage is avoided. 一种数据查询方法及装置、计算机设备和存储介质，所述方法包括：接收需方发送的查询请求，所述查询请求中携带有目标数据标识；确定供方前置机的数据提供方式；当所述数据提供方式为数据库提供时，