sql where in code example

Example 1: sql in

Used alongside a WHERE clause as a shorthand for multiple OR conditions.
So instead of:
SELECT * FROM users
WHERE country = 'USA' OR country = 'United Kingdom' OR
country = 'Russia' OR country = 'Australia';
You can use:
SELECT * FROM users
WHERE country IN ('USA', 'United Kingdom', 'Russia',
'Australia');

Example 2: where clause in sql

Where clause basically returns only 
true conditions

Select First_Name
From Customers
Where ID = 1905Cimbom;

Example 3: sql not in

SQL NOT IN operator is used to filter the result if the values that are mentioned as part of the IN operator is not satisfied. Let’s discuss in detail about SQL NOT IN operator.

Syntax:
SELECT Column(s) FROM table_name WHERE Column NOT IN (value1, value2... valueN);

Example 4: SQL Where

Mit WHERE filtert man nach Zeilen aus einer Tabelle, die bestimmte Kriterien
erfüllen. Auf diese Weise kann man die Zeilen auf die Zeilen beschränken, 
an der man interessiert ist. Auf diesen Klausel folgt eine Bedingung, die 
entweder «true» oder «false» zurückgibt.

  SELECT *
  FROM customer
  WHERE ID = 10;

Example 5: where query in sql server

SELECT * FROM Customers
WHERE Country='Mexico';

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