MySQL · Chinook
InvoiceLine
- Source rows
- 2,240
- Synthetic rows
- 2,240
- Broken foreign keys
- 0
- Rows equal to a source row
- 100%
Every synthetic row matches a source row outside its keys. Kept reference data and resampled source values match by design, and columns with few possible values can match by chance: see how each column was generated below. You can review, replace or remove kept values before you publish a profile.
References: InvoiceId → InvoiceTrackId → Track
Rows
Both databases, first rows by primary key, in one table: scrolling sideways moves them together. Rows at the same position are unrelated, unless the table holds kept reference data. Long values are cut at 60 characters.
| InvoiceLineId key | InvoiceId | TrackId | UnitPrice | Quantity |
|---|---|---|---|---|
| Source database · 12 of 2,240 rows | ||||
| 1 | 1 | 2 | 0.99 | 1 |
| 2 | 1 | 4 | 0.99 | 1 |
| 3 | 2 | 6 | 0.99 | 1 |
| 4 | 2 | 8 | 0.99 | 1 |
| 5 | 2 | 10 | 0.99 | 1 |
| 6 | 2 | 12 | 0.99 | 1 |
| 7 | 3 | 16 | 0.99 | 1 |
| 8 | 3 | 20 | 0.99 | 1 |
| 9 | 3 | 24 | 0.99 | 1 |
| 10 | 3 | 28 | 0.99 | 1 |
| 11 | 3 | 32 | 0.99 | 1 |
| 12 | 3 | 36 | 0.99 | 1 |
| Synthetic database · 12 of 2,240 rows | ||||
| 1 | 22 | 657 | 0.99 | 1 |
| 2 | 40 | 196 | 1.99 | 1 |
| 3 | 73 | 770 | 0.99 | 1 |
| 4 | 250 | 2082 | 0.99 | 1 |
| 5 | 212 | 1309 | 1.99 | 1 |
| 6 | 354 | 1958 | 0.99 | 1 |
| 7 | 337 | 327 | 0.99 | 1 |
| 8 | 222 | 1914 | 0.99 | 1 |
| 9 | 397 | 2006 | 0.99 | 1 |
| 10 | 121 | 53 | 0.99 | 1 |
| 11 | 26 | 2812 | 0.99 | 1 |
| 12 | 186 | 847 | 0.99 | 1 |
Column by column
Each figure is computed from all rows of both databases in the same way. S is the source, Y the synthetic copy. Difference runs from 0 (same distribution) to 1 (no overlap): Kolmogorov-Smirnov for numbers and times, total variation for columns with few values. Personal columns are meant to differ, so they show how many values also appear in the source instead. Lyrebird draws names from built-in lists, not from the source, so common names can match.
| Column | Model read it as | How it was generated | Empty | Distinct | Range or length | Most common | Difference |
|---|---|---|---|---|---|---|---|
| InvoiceLineIdint | record key | New key values | S 0% Y 0% | S 2,240 Y 2,240 | S 1 → 2240 Y 1 → 2240 | S — Y — | — |
| InvoiceIdint | record key | Foreign key, from the measured relationship | S 0% Y 0% | S 412 Y 412 | S 1 → 412 Y 1 → 412 | S — Y — | 0 KS |
| TrackIdint | record key | Foreign key, from the measured relationship | S 0% Y 0% | S 1,984 Y 1,984 | S 1 → 3500 Y 1 → 3503 | S — Y — | 0.023 KS |
| UnitPricedecimal(10,2) | monetary amount | Source values, at measured frequencies | S 0% Y 0% | S 2 Y 2 | S 0.99 → 1.99 Y 0.99 → 1.99 | S 0.99 95% · 1.99 5% Y 0.99 94.2% · 1.99 5.8% | 0.008 KS |
| Quantityint | quantity integer | Source values, at measured frequencies | S 0% Y 0% | S 1 Y 1 | S 1 → 1 Y 1 → 1 | S 1 100% Y 1 100% | 0 KS |