Vyhledat: P��st��nyi J��n, Radv��ni Hadri��n

select group_concat(id_knihy) from soubory where soubor like 'P��st��nyi%'

mysqli_sql_exception: Illegal mix of collations (cp1250_czech_cs,IMPLICIT) and (utf8mb3_uca1400_ai_ci,COERCIBLE) for operation 'like' in /home/librinostri/librinostri.catholica.cz/sql.php:13 Stack trace: #0 /home/librinostri/librinostri.catholica.cz/sql.php(13): mysqli_query() #1 /home/librinostri/librinostri.catholica.cz/index.php(196): mysql_query() #2 {main}
Fatal error: Uncaught TypeError: mysqli_fetch_row(): Argument #1 ($result) must be of type mysqli_result, null given in /home/librinostri/librinostri.catholica.cz/sql.php:21 Stack trace: #0 /home/librinostri/librinostri.catholica.cz/sql.php(21): mysqli_fetch_row() #1 /home/librinostri/librinostri.catholica.cz/index.php(196): mysql_fetch_row() #2 {main} thrown in /home/librinostri/librinostri.catholica.cz/sql.php on line 21