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  • PostgreSQL

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    2. PostgreSQL>
    3. Page 4

    PostgreSQL – DELETE Query

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    The PostgreSQL DELETE Query is used to delete the existing records from a table. You can use WHERE clause with DELETE query to delete the selected rows. Otherwise, all the records would…

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    PostgreSQL – UPDATE Query

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    The PostgreSQL UPDATE Query is used to modify the existing records in a table. You can use WHERE clause with UPDATE query to update the selected rows. Otherwise, all the rows would…

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    AND and OR Conjunctive Operators

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    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…

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    PostgreSQL – WHERE Clause

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    The PostgreSQL WHERE clause is used to specify a condition while fetching the data from single table or joining with multiple tables. If the given condition is satisfied, only then…

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    PostgreSQL – Expressions

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    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…

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    PostgreSQL – Operators

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    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…

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    PostgreSQL – SELECT Query

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    PostgreSQL SELECT statement is used to fetch the data from a database table, which returns data in the form of result table. These result tables are called result-sets. Syntax The basic syntax…

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    PostgreSQL – INSERT Query

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    The PostgreSQL INSERT INTO statement allows one to insert new rows into a table. One can insert a single row at a time or several rows as a result of a query.…

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    PostgreSQL – Schema

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    A schema is a named collection of tables. A schema can also contain views, indexes, sequences, data types, operators, and functions. Schemas are analogous to directories at the operating system level, except…

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    PostgreSQL – DROP Table

    • Post author:S J
    • Post published:August 19, 2021
    • Post category:PostgreSQL
    • Post comments:0 Comments

    The PostgreSQL DROP TABLE statement is used to remove a table definition and all associated data, indexes, rules, triggers, and constraints for that table. You have to be careful while…

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