diff --git a/internal/infra/notify/queries/notifications.sql b/internal/infra/notify/queries/notifications.sql
index 9bd5c10..e4959ee 100644
--- a/internal/infra/notify/queries/notifications.sql
+++ b/internal/infra/notify/queries/notifications.sql
@@ -1,2 +1,22 @@
--- name: Ping :one
-SELECT 1::int AS ok;
+-- name: InsertNotification :exec
+INSERT INTO notifications (id, user_id, topic, severity, title, body, link, metadata, created_at)
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9);
+
+-- name: ListNotificationsByUser :many
+SELECT id, user_id, topic, severity, title, body, link, metadata, read_at, created_at
+FROM notifications
+WHERE user_id = $1
+  AND ($2::bool = false OR read_at IS NULL)
+ORDER BY created_at DESC
+LIMIT $3;
+
+-- name: CountUnreadByUser :one
+SELECT COUNT(*)::int FROM notifications WHERE user_id = $1 AND read_at IS NULL;
+
+-- name: MarkRead :exec
+UPDATE notifications SET read_at = now()
+WHERE id = $1 AND user_id = $2 AND read_at IS NULL;
+
+-- name: MarkAllReadByUser :exec
+UPDATE notifications SET read_at = now()
+WHERE user_id = $1 AND read_at IS NULL;
diff --git a/internal/infra/notify/sqlc/notifications.sql.go b/internal/infra/notify/sqlc/notifications.sql.go
index 12a816f..35cf851 100644
--- a/internal/infra/notify/sqlc/notifications.sql.go
+++ b/internal/infra/notify/sqlc/notifications.sql.go
@@ -7,15 +7,120 @@ package notifysqlc
 
 import (
 	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
 )
 
-const ping = `-- name: Ping :one
-SELECT 1::int AS ok
+const countUnreadByUser = `-- name: CountUnreadByUser :one
+SELECT COUNT(*)::int FROM notifications WHERE user_id = $1 AND read_at IS NULL
 `
 
-func (q *Queries) Ping(ctx context.Context) (int32, error) {
-	row := q.db.QueryRow(ctx, ping)
-	var ok int32
-	err := row.Scan(&ok)
-	return ok, err
+func (q *Queries) CountUnreadByUser(ctx context.Context, userID pgtype.UUID) (int32, error) {
+	row := q.db.QueryRow(ctx, countUnreadByUser, userID)
+	var column_1 int32
+	err := row.Scan(&column_1)
+	return column_1, err
+}
+
+const insertNotification = `-- name: InsertNotification :exec
+INSERT INTO notifications (id, user_id, topic, severity, title, body, link, metadata, created_at)
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
+`
+
+type InsertNotificationParams struct {
+	ID        pgtype.UUID        `json:"id"`
+	UserID    pgtype.UUID        `json:"user_id"`
+	Topic     string             `json:"topic"`
+	Severity  string             `json:"severity"`
+	Title     string             `json:"title"`
+	Body      string             `json:"body"`
+	Link      *string            `json:"link"`
+	Metadata  []byte             `json:"metadata"`
+	CreatedAt pgtype.Timestamptz `json:"created_at"`
+}
+
+func (q *Queries) InsertNotification(ctx context.Context, arg InsertNotificationParams) error {
+	_, err := q.db.Exec(ctx, insertNotification,
+		arg.ID,
+		arg.UserID,
+		arg.Topic,
+		arg.Severity,
+		arg.Title,
+		arg.Body,
+		arg.Link,
+		arg.Metadata,
+		arg.CreatedAt,
+	)
+	return err
+}
+
+const listNotificationsByUser = `-- name: ListNotificationsByUser :many
+SELECT id, user_id, topic, severity, title, body, link, metadata, read_at, created_at
+FROM notifications
+WHERE user_id = $1
+  AND ($2::bool = false OR read_at IS NULL)
+ORDER BY created_at DESC
+LIMIT $3
+`
+
+type ListNotificationsByUserParams struct {
+	UserID  pgtype.UUID `json:"user_id"`
+	Column2 bool        `json:"column_2"`
+	Limit   int32       `json:"limit"`
+}
+
+func (q *Queries) ListNotificationsByUser(ctx context.Context, arg ListNotificationsByUserParams) ([]Notification, error) {
+	rows, err := q.db.Query(ctx, listNotificationsByUser, arg.UserID, arg.Column2, arg.Limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Notification
+	for rows.Next() {
+		var i Notification
+		if err := rows.Scan(
+			&i.ID,
+			&i.UserID,
+			&i.Topic,
+			&i.Severity,
+			&i.Title,
+			&i.Body,
+			&i.Link,
+			&i.Metadata,
+			&i.ReadAt,
+			&i.CreatedAt,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const markAllReadByUser = `-- name: MarkAllReadByUser :exec
+UPDATE notifications SET read_at = now()
+WHERE user_id = $1 AND read_at IS NULL
+`
+
+func (q *Queries) MarkAllReadByUser(ctx context.Context, userID pgtype.UUID) error {
+	_, err := q.db.Exec(ctx, markAllReadByUser, userID)
+	return err
+}
+
+const markRead = `-- name: MarkRead :exec
+UPDATE notifications SET read_at = now()
+WHERE id = $1 AND user_id = $2 AND read_at IS NULL
+`
+
+type MarkReadParams struct {
+	ID     pgtype.UUID `json:"id"`
+	UserID pgtype.UUID `json:"user_id"`
+}
+
+func (q *Queries) MarkRead(ctx context.Context, arg MarkReadParams) error {
+	_, err := q.db.Exec(ctx, markRead, arg.ID, arg.UserID)
+	return err
 }