SQL STATEMENT Meaning and
Definition
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An SQL statement is a command or instruction written in the Structured Query Language (SQL) used to communicate with a relational database management system (RDBMS). It is used for creating, retrieving, updating, and deleting data in a database.
An SQL statement can be classified into different types based on the function it performs. The most commonly used types include:
1. Data Definition Language (DDL) Statements: These statements are used to define and manage the structure of the database. Examples include CREATE TABLE, ALTER TABLE, and DROP TABLE.
2. Data Manipulation Language (DML) Statements: These statements are used to manipulate the data within the database. Examples include SELECT, INSERT, UPDATE, and DELETE.
3. Data Control Language (DCL) Statements: These statements are used to control access to the database. Examples include GRANT and REVOKE.
SQL statements consist of keywords, operators, and special characters that form a query or command. They are generally written as a sequence of words and symbols, which are understood by the RDBMS to perform specific functions. The syntax of SQL statements varies slightly between different database management systems, but the core functionality remains consistent.
To execute an SQL statement, it is typically passed to the RDBMS through an SQL interface or through an application programming language that supports SQL, such as Java or Python. The RDBMS processes the statement, performs the requested action, and returns the result to the user or application.
Common Misspellings for SQL STATEMENT
- aql statement
- zql statement
- xql statement
- dql statement
- eql statement
- wql statement
- s1l statement
- s2l statement
- swl statement
- sal statement
- sqk statement
- sqp statement
- sqo statement
- sql atatement
- sql ztatement
- sql xtatement
- sql dtatement
- sql etatement
- sql wtatement
- sql sratement
Etymology of SQL STATEMENT
The term "SQL statement" is derived from the acronym SQL, which stands for Structured Query Language. SQL is a programming language used for managing and manipulating relational databases. The acronym itself was initially an abbreviation for SEQUEL, which stood for Structured English Query Language. However, due to trademark issues, the name was changed to SQL. Thus, an "SQL statement" refers to a command or instruction written in the SQL language to interact with a database.
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