Created
November 4, 2022 06:26
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SQLite3 WASM/JS download sample
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| <!DOCTYPE html> | |
| <!-- SQLite3 WASM/JS download sample --> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width" /> | |
| <title>SQLite</title> | |
| <meta name="description" content="Zenn" /> | |
| </head> | |
| <body> | |
| <h3>t4.html</h3> | |
| <hr /> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/sql.js/1.6.2/sql-wasm.min.js"></script> | |
| <script> | |
| initSqlJs({ | |
| locateFile: file => `https://cdnjs.cloudflare.com/ajax/libs/sql.js/1.6.2/${file}` | |
| }).then(SQL => { | |
| const db = new SQL.Database(); | |
| let res = JSON.stringify(db.exec("SELECT sqlite_version();")); | |
| console.log(res) | |
| res = JSON.stringify(db.exec(`CREATE TABLE users(id INTEGER PRIMARY KEY, name TEXT);`)); | |
| console.log(res) | |
| res = JSON.stringify(db.exec(`INSERT INTO users(name) VALUES ('hoge123');`)); | |
| console.log(res) | |
| res = JSON.stringify(db.exec(`INSERT INTO users(name) VALUES ('fuga123');`)); | |
| console.log(res) | |
| res = JSON.stringify(db.exec(`SELECT * FROM users;`)); | |
| console.log(res) | |
| //export | |
| const uint8Array = db.export(); | |
| //console.log(uint8Array); | |
| const blob = new Blob([uint8Array], {type: 'application/octet-binary'}); | |
| const url = window.URL.createObjectURL(blob); | |
| const a = document.createElement('a'); | |
| a.href = url; | |
| a.download = `hoge.sqlite`; | |
| a.click(); | |
| a.remove() | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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