IBM GC23-7753-05 - Manual (Page 11)

and other Informix technical information such as technotes, white papers, and IBM
Redbooks
® publications online at http://www.ibm.com/software/data/sw-
library/.
Compliance with industry standards
IBM Informix products are compliant with various standards.
IBM Informix SQL-based products are fully compliant with SQL-92 Entry Level
(published as ANSI X3.135-1992), which is identical to ISO 9075:1992. In addition,
many features of IBM Informix database servers comply with the SQL-92
Intermediate and Full Level and X/Open SQL Common Applications Environment
(CAE) standards.
The IBM Informix Geodetic DataBlade Module supports a subset of the data types
from the Spatial Data Transfer Standard (SDTS)—Federal Information Processing
Standard 173, as referenced by the document Content Standard for Geospatial
Metadata, Federal Geographic Data Committee, June 8, 1994 (FGDC Metadata
Standard).
Syntax diagrams
Syntax diagrams use special components to describe the syntax for statements and
commands.
Table 3. Syntax Diagram Components
Component represented in PDF Component represented in HTML Meaning
>>---------------------- Statement begins.
----------------------->
Statement continues on next
line.
>-----------------------
Statement continues from
previous line.
-----------------------><
Statement ends.
--------SELECT----------
Required item.
--+-----------------+---
’------LOCAL------’
Optional item.
---+-----ALL-------+---
+--DISTINCT-----+
’---UNIQUE------’
Required item with choice.
Only one item must be
present.
---+------------------+---
+--FOR UPDATE-----+
’--FOR READ ONLY--’
Optional items with choice
are shown below the main
line, one of which you might
specify.
Introduction ix