types of operators in sql - PrivacyWall

https://www.postgresql.org/docs/current/functions.html

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Chapter 9. Functions and Operators - PostgreSQL

PostgreSQL provides a large number of functions and operators for the built-in data types. This chapter describes most of them, although additional special-purpose functions appear in relevant sections of the manual. Users can also define their own functions and operators, as described in Part V.The psql commands \df and \do can be used to list all available functions and operators, respectively.

https://www.geeksforgeeks.org/introduction-of-relational-algebra-...

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Introduction of Relational Algebra in DBMS - GeeksforGeeks

Relational Algebra is a formal language used to query and manipulate relational databases, consisting of a set of operations like selection, projection, union, and join. It provides a mathematical framework for querying databases, ensuring efficient data retrieval and manipulation.

https://airbyte.com/data-engineering-resources/advanced-sql-conce...

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15 Advanced SQL Concepts With Examples (2025 Edition)

While basic SQL equips you with standard operations like filtering, sorting, and altering tables, advanced SQL delves deeper, offering functionalities like window functions, aggregate functions, pivoting techniques, and many more. Advanced SQL enables you to manage:

https://www.tpointtech.com/dbms-relational-algebra

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DBMS Relational Algebra - Tpoint Tech - Java

Special relational operations include the following operations: Let's explain each one by one in detail. 1. Select Operation: The select operation also known as restriction operation results in a new relation that contains those rows of relation that satisfy a specified condition. The select operation selects tuples that satisfy a given predicate.

https://sqlite.org/lang_expr.html

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SQL Language Expressions - SQLite

Operators, and Parse-Affecting Attributes. Operators shown within the same table cell share precedence. " [expr] " denotes operand locations for non-binary operators. Operators with no "[expr]" adjunct are binary and left-associative. The COLLATE clause (with its collation-name) acts as a single postfix operator.

https://www.geeksforgeeks.org/sql-data-types/

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SQL Data Types - GeeksforGeeks

SQL data types define the kind of data a column can store, dictating how the database manages and interacts with the data. Each data type in SQL specifies a set of allowed values, as well as the operations that can be performed on the values. SQL data types are broadly categorized into several groups: 1. Numeric Data Types.

https://www.postgresql.org/docs/current/functions-math.html

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9.3. Mathematical Functions and Operators - PostgreSQL

Mathematical operators are provided for many PostgreSQL types. For types without standard mathematical conventions (e.g., date/time types) we describe the actual behavior in subsequent sections. Table 9.4 shows the mathematical operators that are available for the standard numeric types.

https://success.outsystems.com/documentation/outsystems_developer...

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ANSI-92 operators and functions - ODC Documentation

The tables below outline the supported SQL operators and functions when working with external systems. When a query only references entities from one connection, the operator and function calls will be pushed down in the query to the external system in most cases.

https://intellipaat.com/blog/tutorial/sql-tutorial/where-clause/

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WHERE Clause in SQL - Intellipaat

In this article, you will learn what the WHERE clause is, how it works, and how to use it effectively when writing SQL queries. Table of Contents: What is the WHERE Clause in SQL? The WHERE clause in SQL is used in queries to retrieve records based on conditions.

https://www.postgresql.org/docs/current/functions-comparison.html

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9.2. Comparison Functions and Operators - PostgreSQL

These comparison operators are available for all built-in data types that have a natural ordering, including numeric, string, and date/time types. In addition, arrays, composite types, and ranges can be compared if their component data types are comparable.

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