Achieving Case-Sensitive String Comparisons in MySQL
Problem: MySQL's default string comparison is case-insensitive. How can we perform case-sensitive comparisons?
Solution:
Utilize the BINARY
keyword within your MySQL queries to enforce case sensitivity. For instance:
<code class="language-sql">SELECT * FROM `your_table` WHERE BINARY `your_column` = 'your_value';</code>
By prepending BINARY
to the column name, MySQL interprets the column as a binary string, resulting in a case-sensitive comparison. This accurately differentiates strings with varying capitalization.
Illustrative Example:
Consider this case-insensitive comparison:
<code class="language-sql">SELECT * FROM `your_table` WHERE `your_column` = 'Example';</code>
This query retrieves rows where your_column
contains 'Example', 'example', 'EXAMPLE', etc.
Now, let's introduce case sensitivity:
<code class="language-sql">SELECT * FROM `your_table` WHERE BINARY `your_column` = 'Example';</code>
This modified query only returns rows where your_column
precisely matches 'Example' – case matters!
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