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Note that escaping your identifiers in MySQL way using backticks decreases portability on a plain place.

I would either use double quotes with ANSI SQL mode enabled, or just give my variables names which are unlikely to be become reserved in future.

If you want to check if you have named your table or column with a reserved word here is a script/process that will get you there:

As root: First create a test database and a table in that database to save all the reserved words. (You could probably use an existing schema)

---------------

create database mytest;
use mytest;
create table reserved_words (reserved_word varchar(50));
create index reserved_words_1ix on reserved_words(reserved_word);
insert into reserved_words (reserved_word) values
('ACCESSIBLE'),
('ALTER'),
('AS'),
('BEFORE'),
('BINARY'),
('BY'),
('CASE'),
('CHARACTER'),
('COLUMN'),
('CONTINUE'),
('CROSS'),
('CURRENT_TIMESTAMP'),
('DATABASE'),
('DAY_MICROSECOND'),
('DEC'),
('DEFAULT'),
('DESC'),
('DISTINCT'),
('DOUBLE'),
('EACH'),
('ENCLOSED'),
('EXIT'),
('FETCH'),
('FLOAT8'),
('FOREIGN'),
('GRANT'),
('HIGH_PRIORITY'),
('HOUR_SECOND'),
('IN'),
('INNER'),
('INSERT'),
('INT2'),
('INT8'),
('INTO'),
('JOIN'),
('KILL'),
('LEFT'),
('LINEAR'),
('LOCALTIME'),
('LONG'),
('LOOP'),
('MATCH'),
('MEDIUMTEXT'),
('MINUTE_SECOND'),
('NATURAL'),
('NULL'),
('OPTIMIZE'),
('OR'),
('OUTER'),
('PRIMARY'),
('RANGE'),
('READ_WRITE'),
('REGEXP'),
('REPEAT'),
('RESTRICT'),
('RIGHT'),
('SCHEMAS'),
('SENSITIVE'),
('SHOW'),
('SPECIFIC'),
('SQLSTATE'),
('SQL_CALC_FOUND_ROWS'),
('STARTING'),
('TERMINATED'),
('TINYINT'),
('TRAILING'),
('UNDO'),
('UNLOCK'),
('USAGE'),
('UTC_DATE'),
('VALUES'),
('VARCHARACTER'),
('WHERE'),
('WRITE'),
('ZEROFILL'),
('ALL'),
('AND'),
('ASENSITIVE'),
('BIGINT'),
('BOTH'),
('CASCADE'),
('CHAR'),
('COLLATE'),
('CONSTRAINT'),
('CREATE'),
('CURRENT_TIME'),
('CURSOR'),
('DAY_HOUR'),
('DAY_SECOND'),
('DECLARE'),
('DELETE'),
('DETERMINISTIC'),
('DIV'),
('DUAL'),
('ELSEIF'),
('EXISTS'),
('FALSE'),
('FLOAT4'),
('FORCE'),
('FULLTEXT'),
('HAVING'),
('HOUR_MINUTE'),
('IGNORE'),
('INFILE'),
('INSENSITIVE'),
('INT1'),
('INT4'),
('INTERVAL'),
('ITERATE'),
('KEYS'),
('LEAVE'),
('LIMIT'),
('LOAD'),
('LOCK'),
('LONGTEXT'),
('MASTER_SSL_VERIFY_SERVER_CERT'),
('MEDIUMINT'),
('MINUTE_MICROSECOND'),
('MODIFIES'),
('NO_WRITE_TO_BINLOG'),
('ON'),
('OPTIONALLY'),
('OUT'),
('PRECISION'),
('PURGE'),
('READS'),
('REFERENCES'),
('RENAME'),
('REQUIRE'),
('REVOKE'),
('SCHEMA'),
('SELECT'),
('SET'),
('SPATIAL'),
('SQLEXCEPTION'),
('SQL_BIG_RESULT'),
('SSL'),
('TABLE'),
('TINYBLOB'),
('TO'),
('TRUE'),
('UNIQUE'),
('UPDATE'),
('USING'),
('UTC_TIMESTAMP'),
('VARCHAR'),
('WHEN'),
('WITH'),
('YEAR_MONTH'),
('ADD'),
('ANALYZE'),
('ASC'),
('BETWEEN'),
('BLOB'),
('CALL'),
('CHANGE'),
('CHECK'),
('CONDITION'),
('CONVERT'),
('CURRENT_DATE'),
('CURRENT_USER'),
('DATABASES'),
('DAY_MINUTE'),
('DECIMAL'),
('DELAYED'),
('DESCRIBE'),
('DISTINCTROW'),
('DROP'),
('ELSE'),
('ESCAPED'),
('EXPLAIN'),
('FLOAT'),
('FOR'),
('FROM'),
('GROUP'),
('HOUR_MICROSECOND'),
('IF'),
('INDEX'),
('INOUT'),
('INT'),
('INT3'),
('INTEGER'),
('IS'),
('KEY'),
('LEADING'),
('LIKE'),
('LINES'),
('LOCALTIMESTAMP'),
('LONGBLOB'),
('LOW_PRIORITY'),
('MEDIUMBLOB'),
('MIDDLEINT'),
('MOD'),
('NOT'),
('NUMERIC'),
('OPTION'),
('ORDER'),
('OUTFILE'),
('PROCEDURE'),
('READ'),
('REAL'),
('RELEASE'),
('REPLACE'),
('RETURN'),
('RLIKE'),
('SECOND_MICROSECOND'),
('SEPARATOR'),
('SMALLINT'),
('SQL'),
('SQLWARNING'),
('SQL_SMALL_RESULT'),
('STRAIGHT_JOIN'),
('THEN'),
('TINYTEXT'),
('TRIGGER'),
('UNION'),
('UNSIGNED'),
('USE'),
('UTC_TIME'),
('VARBINARY'),
('VARYING'),
('WHILE'),
('XOR')
;

---------------

Assuming you want to do this check for a specific database, in my case I have a database called "rfp"

---------------

use information_schema;

select table_name from TABLES where table_schema='rfp'
and upper(table_name) in (select reserved_word from mytest.reserved_words);

select table_name, column_name from columns where table_schema='rfp'
and upper(column_name) in (select reserved_word from mytest.reserved_words);

---------------

To do the check for the entire database:

---------------

select table_schema, table_name from TABLES where
upper(table_name) in (select reserved_word from mytest.reserved_words);

select table_schema, table_name, column_name from columns
where
upper(column_name) in (select reserved_word from mytest.reserved_words);

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