MySQL Reference Manual for version 4.0.18.

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15.7 Reserved Words in MaxDB

Like MySQL, MaxDB has a number of reserved words that have special meanings. Normally, they cannot be used as names of identifiers, such as database or table names. The following table lists reserved words in MaxDB, indicates the context in which those words are used, and indicates whether or not they have counterparts in MySQL. If such a counterpart exists, the meaning in MySQL might be identical, or differing in some aspects. The main purpose is to list in which respects MaxDB differs from MySQL; therefore, this list is not complete.

For the list of reserved words in MySQL, see See section 10.6 Treatment of Reserved Words in MySQL.

Reserved in MaxDB Context of usage in MaxDB MySQL counterpart
@ May prefix identifier, like "@table" Not allowed
ADDDATE() SQL function ADDDATE(); new in MySQL version 4.1.1
ADDTIME() SQL function ADDTIME(); new in MySQL version 4.1.1
ALPHA SQL function Nothing comparable
ARRAY Data type Not implemented
ASCII() SQL function ASCII(), but implemented with a different meaning
AUTOCOMMIT Transactions; ON by default Transactions; OFF by default
BOOLEAN Column types; BOOLEAN accepts as values only TRUE, FALSE, and NULL BOOLEAN was added in MySQL version 4.1.0; it is a synonym for BOOL which is mapped to TINYINT(1). It accepts integer values in the same range as TINYINT as well as NULL. TRUE and FALSE can be used as aliases for 1 and 0.
CHECK CHECK TABLE CHECK TABLE; similar, but not identical usage
COLUMN Column types COLUMN; noise word
CHAR() SQL function CHAR(); identical syntax; similar, not identical usage
COMMIT Implicit commits of transactions happen when data definition queries are being issued Implicit commits of transactions happen when data definition queries are being issued, but also with a number of other queries
COSH() SQL function Nothing comparable
COT() SQL function COT(); identical syntax and implementation
CREATE SQL, data definition language CREATE
DATABASE SQL function DATABASE(); DATABASE is used in a different context, for example CREATE DATABASE
DATE() SQL function CURRENT_DATE
DATEDIFF() SQL function DATEDIFF(); new in MySQL version 4.1.1
DAY() SQL function Nothing comparable
DAYOFWEEK() SQL function DAYOFWEEK(); the first day (1) by default is Monday in MaxDB, and Sunday in MySQL
DISTINCT SQL functions AVG, MAX, MIN, SUM DISTINCT; but used in a different context: SELECT DISTINCT
DROP inter alia in DROP INDEX DROP INDEX; similar, but not identical usage
EBCDIC() SQL function Nothing comparable
EXPAND() SQL function Nothing comparable
EXPLAIN Optimization EXPLAIN; similar, but not identical usage
FIXED() SQL function Nothing comparable
FLOAT() SQL function Nothing comparable
HEX() SQL function HEX(); similar, but not identical usage
INDEX() SQL function INSTR() or LOCATE(); similar, but not identical syntaxes and meanings
INDEX USE INDEX, IGNORE INDEX and similar hints are being used right after SELECT, like SELECT ... USE INDEX USE INDEX, IGNORE INDEX and similar hints are being used in the FROM clause of a SELECT query, like in SELECT ... FROM ... USE INDEX
INITCAP() SQL function Nothing comparable
LENGTH() SQL function LENGTH(); identical syntax, but slightly different implementation
LFILL() SQL function Nothing comparable
LIKE Comparisons LIKE; but the extended LIKE MaxDB provides rather resembles the MySQL REGEX
LIKE wildcards MaxDB supports "%", "_", "ctrl+underline", "ctrl+up arrow", "*", and "?" as wildcards in a LIKE comparison MySQL supports "%", and "_" as wildcards in a LIKE comparison
LPAD() SQL function LPAD(); slightly different implementation
LTRIM() SQL function LTRIM(); slightly different implementation
MAKEDATE() SQL function MAKEDATE(); new in MySQL version 4.1.1
MAKETIME() SQL function MAKETIME(); new in MySQL version 4.1.1
MAPCHAR() SQL function Nothing comparable
MICROSECOND() SQL function MICROSECOND(); new in MySQL version 4.1.1
NOROUND() SQL function Nothing comparable
NULL Column types; comparisons NULL; MaxDB supports special NULL values that are returned by arithmetic operations that lead to an overflow or a division by zero; MySQL does not support such special values
PI SQL function PI(); identical syntax and implementation, but parantheses are mandatory
REF Data type Nothing comparable
RFILL() SQL function Nothing comparable
ROWNO Predicate in WHERE clause Similar to LIMIT clause
RPAD() SQL function RPAD(); slightly different implementation
RTRIM() SQL function RTRIM(); slightly different implementation
SEQUENCE CREATE SEQUENCE, DROP SEQUENCE AUTO_INCREMENT; similar concept, but differing implementation
SINH() SQL function Nothing comparable
SOUNDS() SQL function SOUNDEX(); slightly different syntax
STATISTICS UPDATE STATISTICS ANALYZE; similar concept, but differing implementation
SUBSTR() SQL function SUBSTRING(); slightly different implementation
SUBTIME() SQL function SUBTIME(); new in MySQL version 4.1.1
SYNONYM Data definition language: CREATE [PUBLIC] SYNONYM, RENAME SYNONYM, DROP SYNONYM Nothing comparable
TANH() SQL function Nothing comparable
TIME() SQL function CURRENT_TIME
TIMEDIFF() SQL function TIMEDIFF(); new in MySQL version 4.1.1
TIMESTAMP() SQL function TIMESTAMP(); new in MySQL version 4.1.1
TIMESTAMP() as argument to DAYOFMONTH() and DAYOFYEAR() SQL function Nothing comparable
TIMEZONE() SQL function Nothing comparable
TRANSACTION() Returns the ID of the current transaction Nothing comparable
TRANSLATE() SQL function REPLACE(); identical syntax and implementation
TRIM() SQL function TRIM(); slightly different implementation
TRUNC() SQL function TRUNCATE(); slightly different syntax and implementation
USE mysql commandline user interface command USE
USER SQL function USER(); identical syntax, but slightly different implementation, and parantheses are mandatory
UTC_DIFF() SQL function UTC_DATE(); provides a means to calculate the result of UTC_DIFF()
VALUE() SQL function, alias for COALESCE() COALESCE(); identical syntax and implementation
VARIANCE() SQL function Nothing comparable
WEEKOFYEAR() SQL function WEEKOFYEAR(); new in MySQL version 4.1.1


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