1. XSD Code to RDBMS Script
Copyright 2003, CEC Services, LLC All Rights Reserved

2. Copyright 2003, CEC Services, LLC All Rights Reserved
XSD-RDBMS
Promotes interoperability of standards
Implements Draft EIA836 in RDBMS
Performs in real-time with LTT
Converts XML to DTD to XSD
Auto-translates XSD to RDBMS scripts
Runs industrial grade software factory
Copyright 2003, CEC Services, LLC All Rights Reserved

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Tool Set History
Many move XML to DTD
Some move DTD to XSD
Few move XSD to graphical diagrams
Fewer move RDBMS into XSD
Only one moves XSD to RDBMS
FOR MORE INFO...
See the demo CD available by request from cec-services.com.
Copyright 2003, CEC Services, LLC All Rights Reserved

4. Copyright 2003, CEC Services, LLC All Rights Reserved
How It Works
Input XSD code (from any source)
Element names, references, data types, attributes, enumerated values
Output RDBMS scripts (XSD-RDBMS)
Tables, columns, data types, indexes, views, insertion of enumerated values
Real-time database use (LTT)
Software factory with zero defect code
Copyright 2003, CEC Services, LLC All Rights Reserved

5. Complex Input to Simple Output
Input nearly unreadable by humans:
<xsd:element ref=“Z” minOccurs=“1” maxOccurs =“unbounded”/>
Output in very clear ANSI SQL:
create table T ( Z char( 1) not null) ;
FOR MORE INFO...
See the technical paper on the CD from cec-services.com.
Copyright 2003, CEC Services, LLC All Rights Reserved

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Assumptions
XSD is logically correct
Some XSD is legal but overly complex
Element names map to table names
Element refs map to column names
Attributes map to column data types
Simple sub-types map to column enumerations
Copyright 2003, CEC Services, LLC All Rights Reserved

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XSD Code Quirks
XSD type levels may become convoluted
<xsd:attribute name=“TMC” type=“DTTMC”/> </xsd:simpleType name=“DTTMC” ..“:string”>
<xsd:attribute name=“DTTMC” type=“string”/>
Hungarian Notation is uNrEaDaBle
DocTransfer-TransferMethod-Codetype
doc_transfer_transfer_method_code_type
Punctuation characters allowed in names
XSD names often exceed 30 characters
Copyright 2003, CEC Services, LLC All Rights Reserved

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RDBMS Script Quirks
Column names up to 30 characters
Required by IBM DB2 and ORACLE
Table names up to 30 characters
Required by ORACLE only
Some characters illegal in names
- dash, . period, : colon
FOR MORE INFO...
See the demo CD available by request from cec-services.com.
Copyright 2003, CEC Services, LLC All Rights Reserved

9. Copyright 2003, CEC Services, LLC All Rights Reserved
XSD Logic Quirks: Many
Sub-types may refer to element names, reference names, data types, and enums
Enums allowed for refs tied to sibling refs with minOccurs=1, ie insert without key
Multiple, conflicting redefinitions of the same element coexist in the same system
Infinite level of indirection is encouraged
The only thing to come out of computer science in the last three years
Copyright 2003, CEC Services, LLC All Rights Reserved

10. RDBMS Logic Quirks: None
XSD sub-type to an element name is a column name referring to a table name
RDBMS makes that script as a VIEW of the table named by the column and the table containing the named column
Columns with no parent tables map to a table named Orphan__[xsd_infile_name]
Orphan refs to the same unnamed table promote to a new table name and column
Copyright 2003, CEC Services, LLC All Rights Reserved

11. XSD-RDBMS: Script Output
1. “CREATE TABLE” scripts
The shorter of a duplicate script is ignored
2. “ALTER TABLE” index scripts
3. “CREATE VIEW” scripts
4. “INSERT INTO” enum scripts
An insert into an indexed table on any column other than the key is ignored
Copyright 2003, CEC Services, LLC All Rights Reserved

12. Script Output for Draft EIA-836
1. “CREATE TABLE” scripts used: 604
One duplicate ignored as nearly identical
2. “ALTER TABLE” index scripts used: 53
3. “CREATE VIEW” scripts used: 216
4. “INSERT INTO” scripts used: 267
20 ignored for no respective primary key insert
Uml file, with input and output size of 0.6 MB and 0.8 MB, was ignored because so many label names truncated to the same
Copyright 2003, CEC Services, LLC All Rights Reserved

13. Applying LTT to Draft EIA-836
LTT (Logic Table Technology) stores logic flow in switches
LTT allows RDBMS to perform in real-time
Draft EIA-836 logic is not perfected due in part to XSD as a limited medium
Finalized EIA-836 is a candidate for mapping processes into LTT
The database core is available; everyone is waiting for the final processing logic
Copyright 2003, CEC Services, LLC All Rights Reserved

14. Copyright 2003, CEC Services, LLC All Rights Reserved
Recent Advances
Text manipulation of XSD-RDBMS quickly implemented in ANSI True BASIC®
XSD to RDBMS mapping is now automated with high reliability
XSD exposed as a fad medium with limited tool capability
Copyright 2003, CEC Services, LLC All Rights Reserved