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  1. 27 gru 2012 · $query = mysql_query("SELECT image_id FROM list WHERE (style_id = 24 AND style_value = 'red') OR (style_id = 25 AND style_value = 'big') OR (style_id = 27 AND style_value = 'round'); Try out this query.

  2. SELECT contact_id FROM your_table WHERE flag IN ('Volunteer', 'Uploaded', ...) GROUP BY contact_id HAVING COUNT(*) = 2 -- // must match number in the WHERE flag IN (...) list (assuming contact_id, flag is unique). Or use joins:

  3. To filter data by multiple conditions in a WHERE clause, use the AND operator to connect the conditions. Here’s what this looks like for two conditions: WHERE condition1 AND condition2. In our example, condition1 is dept = 'Finance' and condition2 is salary > 4000.

  4. 15 lip 2015 · I am not very experienced with sql queries and looking for an efficient way to perform the same WHERE IN condition on multiple columns. More specifically, i'm doing the following: SELECT a, b . FROM links . WHERE a IN (90696, 110083, ... 147455) . OR b IN (90696, 110083, ... 147455)

  5. WHERE Syntax. SELECT column1, column2, ... FROM table_name. WHERE condition; Note: The WHERE clause is not only used in. SELECT statements, it is also used in UPDATE, DELETE, etc.!

  6. The WHERE clause is used in MySQL to filter data from a table based on specific conditions. For example, to retrieve all records from a table where the “age” column is greater than 30, we can use the following SQL query: SELECT * FROM table WHERE age > 30;

  7. Multiple WHERE clauses can be used to filter data based on multiple conditions. The syntax for using multiple WHERE clauses is as follows: SELECT column1, column2, …

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