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FLOW OF OPERATIONS
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Choose output size
Choose output format
Correct data types
Add/Remove columns
Change data types
Set bindings
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Use functions
Adjust distributions
Adjust columns
Adjust tables
Create test database
Click-Once generation
FEATURES
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Automatic fast modeling •
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Easy annotations
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DBMS independent
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Composite key support
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”Real” and synthetic data
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Many output options
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Data protection
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Extensible
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Excel-like functions
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”Dirty” data
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Advanced data bindings
Support for bad DB design
EXTENSIBLE ARCHITECTURE
Kernel
System
Supplied
User
Extension
Varchar
Int
...
Normal
Uniform
...
TinyInt
...
LogNormal
...
MS SQL
Oracle
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File
Stream
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Mult
Add
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Database
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Log10
...
...
DATA DEPENDENCIES
COMPOSITE PK-FK BINDINGS
name
location
startdate
enddate
empid
name
location
expectedhrs
T80CC
B3-103
2006-08-29
2006-08-29
1
T80CC
B3-103
200
BBS45
A2-40
2006-08-29
2006-08-29
2
T80CC
B3-103
50
KS231
A2-40
2006-08-29
2006-08-29
1
KS231
A2-40
110
PROJECT
WORKS_ON
INTRA-ROW BINDINGS
id
firstname
Lastname
Ssn
Height
weight
bmi
1
Rico
Wind
0802801237
184
79
2
2
Kenneth
Pedersen
1412711433
185
90
1
3
Kristian
Torp
0205701421
187
85
3
EMPLOYEE
DATA DEPENDENCIES
INTER-COLUMN BINDINGS
increasing_date
fluctuating_price
increasing_price
2006-08-29 10:01:31
100
100
2006-08-29 10:01:33
90
110
2006-08-29 10:01:47
99
121
STOCK
COMBINED BINDINGS
id
stock_price
change_date
MSFT
25.62
2006-08-29 10:01:33
ORCL
15.48
2006-08-29 10:01:33
ORCL
15.52
2006-08-29 10:01:34
MSFT
25.56
2006-08-29 10:01:34
STOCK
TPC-C PERFORMANCE
INHERITED DATATYPE EXAMPLE(C#)
<<interface>>
DataType
...
Int
TinyInt
+PutData(DataReader)
+GetDataItem(string[])
+CreatesDirtyData()
...
DATATYPE EXAMPLE
1 class TinyInt : Int {
2 private bool useBaseData = false;
3 public override void PutData(IDataReader dr) {
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base.PutData(dr);
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if (dist.GetMaxValues() > 255 ||
dist.GetMinValues() < 0)
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useBaseData = true;
7 }
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public override string GetDataItem(
string[] tuple) {
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if (! useBaseData)
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return base.GetDataItem(tuple);
Else
return (string)rnd.NextDouble() * 55;
}
public override bool CreatesDirtyData() {
return false;
} }
DEMONSTRATION