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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.
SELECT t.contactid FROM YOUR_TABLE t WHERE flag IN ('Volunteer', 'Uploaded') GROUP BY t.contactid HAVING COUNT(DISTINCT t.flag) = 2 The key thing is that the counting of t.flag needs to equal the number of arguments in the IN clause.
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.
To use multiple WHERE conditions in MySQL, we can use the AND or OR operators. The AND operator is used to retrieve records that meet all the conditions specified, while the OR operator is used to retrieve records that meet any of the conditions specified.
This MySQL tutorial explains how to use the MySQL WHERE clause with syntax and examples. The MySQL WHERE clause is used to filter the results from a SELECT, INSERT, UPDATE, or DELETE statement.
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
The MySQL WHERE Clause. The WHERE clause is used to filter records. It is used to extract only those records that fulfill a specified condition. 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.! Demo Database.
