[SYMBOL]
[A]
[B]
[C]
[D]
[E]
[F]
[G]
[H]
[I]
[J]
[K]
[L]
[M]
[N]
[O]
[P]
[Q]
[R]
[S]
[T]
[U]
[V]
[W]
[X]
[Y]
RADIANS function
DB2
MySQL
PostgreSQL
SQL Server
RADIUS function (PostgreSQL)
RAISE_ERROR function (DB2)
RAND function
DB2
SQL Server
RAND( ) function (MySQL)
RANK function 2nd
RANK( ) function
RATIO_TO_REPORT function (Oracle)
RAW datatype
Oracle
platform comparison
RAWTOHEX function (Oracle)
RDBMSs (Relational Database Management System)
ReadCommitted isolation level (Transaction object (ADO.NET))
ReadUncommitted isolation level (Transaction object (ADO.NET))
REAL datatype
DB2
MySQL
Oracle
platform comparison
PostgreSQL
SQL Server
REAL function (DB2)
REC2XML function (DB2)
records
REF function (Oracle)
REFTOHEX function (Oracle)
REGEXP_INSTR function (Oracle)
REGEXP_REPLACE function (Oracle)
REGEXP_SUBSTR function (Oracle)
REGR family of functions
REGR_AVGX function 2nd 3rd 4th 5th 6th 7th 8th 9th 10th
REGR_AVGY function 2nd 3rd 4th 5th 6th 7th 8th 9th
REGR_COUNT function 2nd 3rd 4th 5th 6th 7th 8th
REGR_INTERCEPT function 2nd 3rd 4th 5th 6th 7th
REGR_R2 function 2nd 3rd 4th 5th 6th
REGR_SLOPE function 2nd 3rd 4th 5th
REGR_SXX function 2nd 3rd 4th
REGR_SXY function 2nd 3rd
REGR_SYY function 2nd
Relational Database Management Systems (RDBMSs)
relational databases, principles of
RELEASE SAVEPOINT statement
DB2
keywords
MySQL
Oracle
platform support for
PostgreSQL
programming tips
quick reference
rules
SQL Server
SQL2003 syntax
RELEASE_LOCK function (MySQL)
RELTIME function (PostgreSQL)
REMAINDER function (Oracle)
REPEAT function
DB2
MySQL
RepeatableRead isolation level (Transaction object (ADO.NET))
REPLACE function
DB2
MySQL
Oracle
SQL Server
REPLICATE function
SQL Server
reserved words 2nd
resources, freeing
ResultSet methods (JDBC)
Get
RETURN statement
DB2
keywords
MySQL
Oracle
platform support for
PostgreSQL
programming tips
quick reference
rules
SQL Server
SQL2003 syntax
REVERSE function
MySQL
SQL Server
REVOKE statement
DB2
keywords
MySQL
Oracle
platform support for
PostgreSQL
programming tips
quick reference
rules
SQL Server
SQL2003 syntax
RIGHT [OUTER] JOIN
RIGHT function
DB2
MySQL
SQL Server
ROLE_CONTAIN function
ROLE_ID function
ROLE_NAME function
ROLLBACK statement
DB2
keywords
MySQL
Oracle
platform support for
PostgreSQL
programming tips
quick reference
rules
SQL Server
SQL2003 syntax
ROUND function
DB2
MySQL
Oracle
PostgreSQL
SQL Server
row processing
ROW_NUMBER function
ROWCNT function
ROWCOUNT_BIG( ) function
SQL Server
ROWID datatype
Oracle
platform comparison
ROWIDTOCHAR function (Oracle)
rows, filtering and comparison operators
ROWVERSION datatype
platform comparison
SQL Server 2nd
RPAD function
MySQL
Oracle
PostgreSQL
RTRIM function
DB2
MySQL
Oracle
PostgreSQL
SQL Server
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