Good evening, I was trying to sanitize statements, but something went awkward. The following non sanitized codelet works ok:     str := 'INSERT INTO chaves_de_encriptacao (                     numero_funcional,                     chave_privada,                     chave_publica) VALUES (''',                     self personId leaId asString,''', ''',                     self keyPair privateKey asAsn1DerBytes asByteArray hex,''', ''',                     self keyPair publicKey asAsn1DerBytes asByteArray hex,''')'.     [ dbConnection execute: str ] on: Exception do: [ ^ false ]. But sanitized one:     str := dbConnection createStatement: 'INSERT INTO chaves_de_encriptacao ( numero_funcional, chave_privada, chave_publica) VALUES (''?'', ''?'', ''?'')'.     str prepare.     str at: 1 bind: self personId leaId asString.     str at: 2 bind: self keyPair privateKey asAsn1DerBytes asByteArray hex.     str at: 3 bind: self keyPair publicKey asAsn1DerBytes asByteArray hex.     str execute. returns exception mysqld_stmt_send_long_data (obviously same thing happens with the shorthand str := dbConnection prepare: ... And I inspect most things but could not understand what's going bad. As SQL is not my field, I wonder if someone could help to elucidate what's going on. Best regards, Casimiro Barreto