By the way, the following script fails with the same Exception (mysql_stmt_send_long_data): | db str sttmt |    db := GADriver             connectToConnectionString: 'mysql://localhost:3306/leaincertezas?user=learoot&password=welcomeLEA'.    str := 'INSERT INTO chaves_de_encriptacao (numero_funcional, chave_privada, chave_publica) VALUES (''?'', ''?'', ''?'')'.    sttmt := db prepare: str.    sttmt at: 1 bind: '10'.    sttmt at: 2 bind: '0BC0DE0FG32A128AB2EF01'.    sttmt at: 3 bind: 'BEC0D01279F92123FAB2E0'.    sttmt execute.    db close. But the script: | db str sttmt |    db := GADriver             connectToConnectionString: 'mysql://localhost:3306/leaincertezas?user=learoot&password=welcomeLEA'.    str := 'INSERT INTO chaves_de_encriptacao (numero_funcional, chave_privada, chave_publica) VALUES (''10'', ''0BC0DE0FG32A128AB2EF01'', ''0BC0DE0FG32A128AB2EF01'')'.    db execute: str.    db close. Results: MariaDB [leaincertezas]> SELECT * FROM chaves_de_encriptacao; +------------------+------------------------+------------------------+ | numero_funcional | chave_privada         | chave_publica         | +------------------+------------------------+------------------------+ |              10 | 0BC0DE0FG32A128AB2EF01 | 0BC0DE0FG32A128AB2EF01 | +------------------+------------------------+------------------------+ 1 row in set (0.00 sec)