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  1. PostgreSQL Tutorial

    Introduction to PostgreSQL updatable views\/h2>\n\n\n\n In PostgreSQL, a view\/a> is a named query stored in the database server. A view can be updatable if it meets certain conditions. This means that …

  2. PostgreSQL Tutorial

    2) Using PostgreSQL LEFT JOIN with WHERE clause\/h3>\n\n\n\n The following uses the LEFT JOIN\/code> clause to join the inventory\/code> and film\/code> tables. It includes a …

  3. PostgreSQL Tutorial

    Summary\/strong>: in this tutorial, you will learn how to use the PostgreSQL to_jsonb()\/code> function to convert an SQL value to a value of JSONB\/code> type.\/p>\n\n\n\n Introduction to the …

  4. PostgreSQL Tutorial

    When you apply the COUNT(*)\/code>\u00a0function to the entire table, PostgreSQL has to scan the whole table sequentially. If you use the COUNT(*)\/code> function on a big table, the query will be slow.

  5. PostgreSQL Tutorial

    Summary\/strong>: in this tutorial, you will learn how to use the PostgreSQL jsonb_insert()\/code> function to insert a new element into a JSON array or a key\/value pair into a JSON object.\/p>\n\n\n\n

  6. PostgreSQL Tutorial

    When executing the query, you need to bind values to these parameters.<\/p>\n\n\n\n<p class=\"note\">Parameterized queries can prevent SQL injection attacks, especially when the data …