PostgreSQL – Expressions An expression is a combination of one or more values, operators, and PostgresSQL functions that evaluate to a value. PostgreSQL EXPRESSIONS are like formulas and they are written in query language. You can also use to query the database for specific set of data. Syntax Consider the basic syntax of the SELECT […]
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PostgreSQL – Operators What is an Operator in PostgreSQL? An operator is a reserved word or a character used primarily in a PostgreSQL statement”s WHERE clause to perform operation(s), such as comparisons and arithmetic operations. Operators are used to specify conditions in a PostgreSQL statement and to serve as conjunctions for multiple conditions in a […]
AND and OR Conjunctive Operators The PostgreSQL AND and OR operators are used to combine multiple conditions to narrow down selected data in a PostgreSQL statement. These two operators are called conjunctive operators. These operators provide a means to make multiple comparisons with different operators in the same PostgreSQL statement. The AND Operator The AND […]