As a disclaimer, for SQL, there is not a style guide or standard equivalent to that available in other programming languages like python (PEP8) that is both well-known and widely adopted. That said, I do believe the measures in the forms of rules and rough guidelines that I propose are ...
SQL WHERE Clause - Learn how to effectively use the SQL WHERE clause to filter records in your SQL queries. Enhance your database management skills with practical examples.
The following SELECT statement makes use of SQL subquery where subquery finds all the records with AGE field having SALARY > 65000 and later WHERE clause is being used along with > operator to list down all the records where AGE from outside query is greater than the age in the result retu...
The SQL WHERE Clause is used when you want to retrieve specific information from a table excluding other irrelevant data. In a where clause simple conditions based on comparison operators can be combined using the logical connectives and, or, and not to
SQL Code: SELECT * FROM actorWHERE last_name='Haus' Output: PHP with PostgreSQL WHERE Clause example 1 Code: <!DOCTYPE html> PostreSQL PHP WHERE Example 1 List of all actors whose last name is Haus <?php$db = pg_connect("host=localhost port=5432 dbname=w3r user=w3r_admin ...
This article aims to explain the WHERE, GROUP By, and HAVING clauses in detail. Also, we will see the difference between WHERE and HAVING with examples. TSQL programming is the language used to query the data from the SQL server database. TSQL is derived from ANSI SQL. There are various...
There is a separate article in our blog for those willing to learn more about thedifference between EXISTS and NOT EXISTS in SQL. Using MySQL WHERE clause with comparison operators As we know, theWHEREcondition value can be any number, text, string, or subquery. Besides specifying the conditio...
When working with MySQL in Python, we can use the WHERE clause in much the same way as we do in SQL. We can build our query as a string, including the WHERE clause with any necessary conditions, and then pass it to the cursor.execute() method. For example, let's say we have a ...
This reply should have been posted in the comment, but it exceeded the number of words in the comment.When the SQL statement has multiple or statements, you can consider using union or union all instead to improve speed. SQL statements using or often cannot be optimized, resulting in ...
Decrypt the encrypted store procedure through the T-SQL programming in SQL Server 2005 Decrypt the hashed password in SQL Server 2008 DECRYPTBYPASSPHRASE sometimes returns NULL for the same input and passphrase. Default DATE and uniqueidentifier parameters? Default sort order - Open Table - Select ...