The LIBNAME Statement for Relational Databases |
Specifies
how SAS automatically renames to valid SAS variable
names any DBMS columns that contain characters that SAS does not allow.
Default value: |
DBMS
|
Valid in: |
SAS/ACCESS LIBNAME
statement
|
DBMS support: |
Aster nCluster, DB2 under
UNIX and PC Hosts, DB2 under z/OS,
Greenplum, HP Neoview, Informix, Microsoft SQL Server, MySQL, Netezza, ODBC,
OLE DB, Oracle, Sybase, Sybase IQ, Teradata
|
-
DBMS
-
specifies that SAS renames DBMS columns
to valid SAS variable names. SAS converts to underscores any characters that
it does not allow. If it converts a column to a name that already exists,
it appends a sequence number at the end of the new name.
-
SAS
-
specifies that SAS converts DBMS columns
that contain characters that SAS does not allow into valid SAS variable names.
SAS uses the format _COLn, where n is the column number, starting with 0. If SAS converts a
name to a name that already exists, it appends a sequence number at the end
of the new name.
SAS retains column names when it reads
data from DBMS tables unless a column name contains characters that SAS does
not allow, such as $
or @
. SAS allows alphanumeric
characters and the underscore (_).
This option is intended primarily for National Language
Support, notably for the conversion of kanji to English characters. English
characters that are converted from kanji are often those that SAS does not
allow. Although this option works for the single-byte character set (SBCS)
version of SAS, SAS ignores it in the double-byte character set (DBCS) version.
So if you have the DBCS version, you must first set VALIDVARNAME=ANY before
using your language characters as column variables.
Each of the various SAS/ACCESS interfaces
handled name collisions differently in SAS 6. Some interfaces appended at
the end of the name, some replaced one or more of the final characters in
the name, some used a single sequence number, and others used unique counters.
When you specify VALIDVARNAME=V6, SAS handles name collisions as it did in
SAS 6.
If you specify DBGEN_NAME=SAS, SAS renames a DBMS column
named Dept$Amt
to _COLn
.
If you specify DBGEN_NAME=DBMS, SAS renames the Dept$Amt
column to Dept_Amt
.
To apply this option to an individual data set, see
the
DBGEN_NAME= Data Set Option.
VALIDVARNAME= System Option
Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.