MS SQL Servers are generally setup in large organizations to store crucial and important information in the form of MDF and LDF files. Along with the setup of Servers, mostly DBAs of all organizations create backup of the original database. The purpose of creating backups is to enable users to recover a damaged database by schema and schema + data recovery. If backup files are readable, normal restoration process can be applied to get back access to all data contained in the database.
But backups are of no use if the IT team cannot restore the data to the system at the time of need. This situation may arise due to corruption in backup files; that errors are encountered while restoring. So if the backup files gets corrupted which is very much possible; in such situations a recovery process should be instilled to recover, export and save schema and schema + data of backup file that contains MDF and LDF data in two ways mentioned below:
Only With Schema: This will only create the schema i.e. structure of table, views, procedures, etc.
Recovery of schema is preferred when database has to be recovered in a different version of SQL Server. This is because if data is exported from one version to another then it harms the data.
With Schema + Data: This option helps to export both schema as well as data of the selected table, fields, views, procedures, etc.
Recovery of both schema and data is preferred when database has to be recovered in same version of the Server. This is because if data is exported in same version, no harm is done to the data.
The concept of a database object schema was first implemented in SQL Server 2005. A schema of database is an outline that shows how a database is constructed. Although, schema is defined in text database language, it is used to refer to a graphical representation of the database structure. In other words, schema is the structure of the database that defines the objects in the database. In a database, the schema defines the tables, fields, relationships, views, indexes and other elements. A set of formulas called integrity constraints is imposed on a database where the integrity constraints ensure compatibility between parts of the schema.
Advantages Of SQL Schema
The application recovers complete data from the multiple backup files. The recovered components include schema and schema + data also tables, views, store procedures, rules, triggers, functions, keys, etc. With this tool even the data within these components can be previewed through the in-built viewer of the software.