Check out example codes for "sql where a or b". It will help you in understanding the concepts better.
Code Example 1
/* AND is a operator that allows you to combine two conditions Both conditions must be true for the row to b e included in the result set */ SELECT column_name(s) FROM table_name WHERE column_1 = value_1 AND column_2 = value_2;
Code Example 2
-- example SELECT Id, ProductName, UnitPrice, Package FROM Product WHERE ProductName LIKE 'Cha_' OR ProductName LIKE 'Chan_'
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