1. A data construction system to facilitate data construction operations for a database, the data construction system comprising: a database management system including a database server, and the database server stores a data construction database including staging tables, and data configuration information including field mappings, validation rules and user access information, wherein the database management system is connected to a data source and a target database via at least one network, and the database management system is to receive data from the data source, determine from the field mappings source fields for the data source that map to target fields in a staging table of data construction database, and store the data from the data source in the staging table according to the field mappings; and a data construction interface including an interface to import data from the staging table in the data construction database and export data to the staging table, wherein the data construction interface is to facilitate a pre-data-construction validation check and a post-data-construction validation check according to the validation rules stored in the database server, perform data construction operations on the imported data based on the pre-data-construction validation check and a check-in-check-out process that locks records for single-user actions, and export the data on which the data construction operations were performed to the staging table after performing the post-data-construction validation check, wherein the database management system stores the exported data in the staging table, and the data from the staging table is loaded into the target database from the data construction database.