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POHow to MySQL work "case insensitive" and "accent insensitive" in UTF-8
 

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  1. POHow to MySQL work "case insensitive" and "accent insensitive" in UTF-8
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    <p>I have a schema in "utf8 -- UTF-8 Unicode" as charset and a collation of "utf8_spanish_ci".</p> <p>All the inside tables are InnoDB with same charset and collation as mentioned.</p> <p>Here comes the problem:</p> <p>with a query like</p> <pre><code>SELECT * FROM people p WHERE p.NAME LIKE '%jose%'; </code></pre> <p>I get 83 result rows. I should have 84 results, because I know it.</p> <p>Changing where for:</p> <pre><code>WHERE p.NAME LIKE '%JOSE%'; </code></pre> <p>I get the exact same 83 rows. With combinations like JoSe, Jose, JOSe, etc. All the same 83 rows are reported.</p> <p>The problem comes when accents play in game. If do:</p> <pre><code>WHERE p.NAME LIKE '%josé%'; </code></pre> <p>I get no results. 0 rows.</p> <p>But if I do:</p> <pre><code>WHERE p.NAME LIKE '%JOSÉ%'; </code></pre> <p>I get just one resulting row, so 1 row. This is the only row wich hace accented "jose" and capitalized.</p> <p>I've tried with josÉ, or JoSÉ or whatever combination I do, as long as the accented letter stays capitalized or not, as it really is stored in the database and it stills returning the only row. If I suddenly change "É" for "é" in whatever combination I do with the capitalization in JOSE, it returns no rows.</p> <p>So conclusions:</p> <ul> <li>Case insensitive if no latin characters plays in game.</li> <li>Case sensitive if latin characters appears.</li> <li>Accent sensitive, as if I search JOSE or jose, I only get 83 rows, instead of the 84 rows I need.</li> </ul> <p>What I want?</p> <ul> <li>To search "jose", "JOSE", "José", "JOSÉ", "JÒSE", "jöse", "JoSÈ", ... have to return the 84 rows I know that exists. I what to turn my searchs to case insensitive and "latin" insensitive.</li> </ul> <p>Solutions like <code>COLLATION</code> on <code>LIKE</code> doesn't work for me, don't know why...</p> <p>What can I do?</p> <p>Thanks in advance!</p> <p><strong>EDIT:</strong></p> <p>If I do sometingh like:</p> <pre><code>WHERE p.NAME LIKE '%jose%' COLLATE utf8_general_ci; </code></pre> <p>I get the error:</p> <pre>COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'latin1'</pre> <p>And I've changed all the possible collations on the columns too!</p> <p>And if I do something like:</p> <pre><code>WHERE p.NAME LIKE _utf8 '%jose%' COLLATE utf8_general_ci; </code></pre> <p>The same 83 rows are reported, as if I've made nothing...</p>
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    1. COHave you found a solution for this? I am struglling with the same problem in a database with the character 'ã' and 'Ã'. If I search for 'joao', it will retrieve 'joao' and 'Joao', meaning it finds words with different casing, but not words with accents. If I search for 'João', it will not retrieve records where the A is capitalized as 'JOÃO'. I have even tried creating a table with 4 fields with 4 different collations (ut8_general_ci,utf8_unicode_ci,utf8_bin and latin1_general_ci) to insert the same items and try to search using each of the columns, but haven't found a solution...
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