SQL Server BasicsWhat is SQL Server database?What is RDBMS?What is Normalization?Why we use Denormalization?What_is_SQL?What is PL/SQL?Difference between SQL and PL/SQLDatabase TableOne to One RelationshipOne to Many RelationshipMany to Many RelationshipMany to One RelationshipString Data TypesNumber Data TypesDate Data TypesOther Data TypesCreate DatabaseDrop DatabaseCreating and Managing Users in SQL ServerCreate TableAlter TableDrop TableConstraints in SQL serverPrimary KeyForeign KeyUnique KeyCandidate KeyComposite KeyDifference between primary key and candidate keyPrimary key and foreign key relationshipSurrogate KeyCascading Referential Integrity ConstraintsSelf Referential Integrity ConstraintsInsert into statementInsert multiple recordsUpdate statementDelete statementTruncate statementDifference between Delete and TruncateAlias in SQL ServerSelect statementSelect DistinctSelect TopSelect IntoNull Functions(ISNULL(),NULLIF(),COALESCE())Sub QueryIdentity ColumnSequence objectDifference between sequence and identity columnSQL Server ClausesWHERE ClauseOrder By ClauseTop N ClauseGroup By ClauseHaving ClauseDifference between Where and HavingSQL Server OperatorsArithmetic OperatorsComparison OperatorsLogical OperatorsBitwise OperatorsAny OperatorsAll OperatorsUnion OperatorsUnion All OperatorsDifference between Union and Union AllIntersect OperatorExcept OperatorDifference between Except and IntersectJoinsInner JoinLeft JoinRight JoinFull JoinSelf JoinCross JoinViewsWhat are views?Create views using SSMSIndexed ViewsComplex ViewsCheck Option in ViewCheck Encryption in ViewSchema Binding Option in ViewRead-only ViewsUpdatable ViewsAdvantages and disadvantages of viewsCreate multiple views on one tableCan we implement index on views?Can we Perform Insert, update, delete operation on views?Stored Procedure and FunctionsWhat are Stored Procedures?Why we use stored procedures?Passing parameters to Stored procedureUser-Defined FunctionsDifference between UDF and Stored procedurePre-Defined Functions@@Indentity and Scope_IndentityNULLIF, ISNULL and COALESCE
Previous
Next

What is SQL server database?

SQL Server is a relational database management system (RDBMS) developed by Microsoft. It is a software application that enables the creation, management, and manipulation of databases. SQL Server databases are designed to store and organize structured data in a tabular format, following the principles of the relational model.

A SQL Server database consists of one or more tables, which are used to store and organize data. Each table is made up of columns (fields) and rows (records). Columns define the structure and data types of the information stored, while rows contain the actual data.

Here are some key concepts related to SQL Server databases:

Tables: The fundamental building blocks of a SQL Server database. Tables consist of columns and rows and store data in a structured manner.

Columns: Also known as fields, columns define the attributes or properties of the data being stored. Each column has a name and a data type that determines the kind of data it can store (e.g., text, numbers, dates).

Rows: Also called records, rows represent individual instances of data stored in a table. Each row contains data corresponding to the columns defined in the table's schema.

Primary Key: A primary key is a unique identifier for each row in a table. It ensures that each record is uniquely identifiable and serves as a reference for relationships between tables.

Relationships: SQL Server supports relationships between tables through primary key and foreign key constraints. These relationships establish connections between data across different tables, enabling data integrity and efficient querying.

Queries: SQL Server allows users to perform various operations on the data stored in the database using Structured Query Language (SQL). SQL queries can be used to retrieve, insert, update, or delete data from tables.

Views, Stored Procedures, and Functions: SQL Server provides additional features like views (virtual tables based on queries), stored procedures (predefined scripts for performing operations), and functions (reusable code for calculations or transformations).

SQL Server databases offer robust features, scalability, and security options. They are widely used in enterprise environments for various applications, ranging from small-scale applications to large-scale data-intensive systems.

Previous
Next