init - add project files

tools/jet-2.12.0/qrm/db.go

@@ -0,0 +1,25 @@
+package qrm
+
+import (
+	"context"
+	"database/sql"
+)
+
+// DB is common database interface used by query result mapping
+// Both *sql.DB and *sql.Tx implements DB interface
+type DB interface {
+	Exec(query string, args ...interface{}) (sql.Result, error)
+	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
+	Query(query string, args ...interface{}) (*sql.Rows, error)
+	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
+}
+
+// Queryable interface for sql QueryContext method
+type Queryable interface {
+	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
+}
+
+// Executable interface for sql ExecContext method
+type Executable interface {
+	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
+}