demo: sqlite

_demo/sqlite/sqlite.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/x/sqlite"
+)
+
+func main() {
+	db, err := sqlite.OpenV2(c.Str(":memory:"), sqlite.OpenReadWrite|sqlite.OpenMemory, nil)
+	check(err)
+
+	err = db.Exec(c.Str("CREATE TABLE foo (id INT, name TEXT)"), nil, nil, nil)
+	check(err)
+
+	stmt, err := db.PrepareV3("INSERT INTO foo VALUES (?, ?)", 0, nil)
+	check(err)
+
+	stmt.BindInt(1, 100)
+	stmt.BindText(2, c.Str("Hello World"), sqlite.Static, nil)
+
+	err = stmt.Step()
+	checkDone(err)
+
+	stmt.Reset()
+	stmt.BindInt(1, 200)
+	stmt.BindText(2, c.Str("This is llgo"), sqlite.Static, nil)
+
+	err = stmt.Step()
+	checkDone(err)
+
+	stmt.Close()
+
+	stmt, err = db.PrepareV3("SELECT * FROM foo", 0, nil)
+	check(err)
+
+	for {
+		if err = stmt.Step(); err != sqlite.HasRow {
+			break
+		}
+		c.Printf(c.Str("==> id=%d, name=%s\n"), stmt.ColumnInt(0), stmt.ColumnText(1))
+	}
+	checkDone(err)
+
+	stmt.Close()
+	db.Close()
+}
+
+func check(err sqlite.Errno) {
+	if err != sqlite.OK {
+		c.Printf(c.Str("==> Error: (%d) %s\n"), err, err.Errstr())
+		c.Exit(1)
+	}
+}
+
+func checkDone(err sqlite.Errno) {
+	if err != sqlite.Done {
+		check(err)
+	}
+}