by Doug Myers Database
Lab, Commercial System Division
Overview |
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This is an overview of the features of ALLBASE/SQL version
G3 on MPE/iX 6.0 release (C.60.00):
ALLBASE/SQL manual set on is on Instant
Information CD-ROM
String functions, a new feature for ALLBASE/SQL
G3
Security features, introduced with ALLBASE/SQL G2
Year 2000 compatibility, introduced with ALLBASE/SQL
G2
CAST function, introduced with G1.15
Instant Information CD-ROM |
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The entire manual set for ALLBASE/SQL is now available on
the new CD-ROM documentation system, "Instant Information." You
can now look up information quickly in the on-line documentation.
String Functions |
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The supported SQL syntax has been enhanced to include the
following string manipulation functions: UPPER, LOWER, POSITION, INSTR, TRIM, LTRIM
and RTRIM. These
string functions allow you to manipulate or examine the CHAR
and VARCHAR values
within the SQL syntax, allowing for more sophisticated queries and
data manipulation commands to be formed. The specifications for
each of these functions is described in "New Features in ALLBASE/SQL
Version G3" in Chapter 10, "Technical Articles."
MONITOR and INSTALL Authorities |
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Two new authorities were added in the G2 release of ALLBASE/SQL:
MONITOR and INSTALL.
These authorities can be granted or revoked to users. MONITOR
authority gives the ability to run SQLMON,
an on-line diagnostic tool that monitors the activity of an ALLBASE/SQL
DBEnvironment.
INSTALL authority gives users
the ability to use the SQL preprocessors to create an SQL module
owned by someone other than themselves, or to use ISQL to install
a module owned by someone other than themselves. This is an important
capability for those needing to move modules from a development
DBEnvironment to a production DBEnvironment.
Year 2000 Compatibility |
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ALLBASE/SQL has always stored dates in a four-digit year format
which largely eliminates the year 2000 compatibility problem. ALLBASE/SQL
applications can be coded using four-digit year dates. However,
for existing applications that may allow dates to be entered using
a two-digit year format, there is still an issue as to how these
dates get converted to the ALLBASE/SQL internal format using the
TO_DATE function
or TO_DATETIME.
For an explanation on how these are handled, refer to the article,
"New Features in ALLBASE/SQL Version G3," in Chapter 10, "Technical
Articles."
CAST Function |
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The CAST
function enhancement for ALLBASE/SQL and IMAGE/SQL became available
to customers with the G1.15 release. The CAST
function is used to explicitly convert data from one data type to
another.