Updated docs for IF NOT EXISTS contraint
Getty Ritter
7 years ago
| 59 | 59 | Produces the following SQLite table declarations: |
| 60 | 60 | |
| 61 | 61 | ~~~.sql |
| 62 |
CREATE TABLE |
|
| 62 | CREATE TABLE IF NOT EXISTS books | |
| 63 | 63 | ( id INTEGER PRIMARY KEY ASC |
| 64 | 64 | , title TEXT NOT NULL UNIQUE |
| 65 | 65 | , pages INT NOT NULL DEFAULT 0 |
| 67 | 67 | , published DATE NOT NULL |
| 68 | 68 | , FOREIGN KEY(author_name) REFERENCES authors(id) |
| 69 | 69 | ); |
| 70 |
CREATE TABLE |
|
| 70 | CREATE TABLE IF NOT EXISTS authors | |
| 71 | 71 | ( id INTEGER PRIMARY KEY ASC |
| 72 | 72 | , name TEXT NOT NULL |
| 73 | 73 | , gender BLOB |