触って動く、検証済みの正解集。

-- 必須プレチェック: 結合元 (categories) に id 重複がないか確認
SELECT id, COUNT(*) AS cnt
FROM categories
GROUP BY id
HAVING COUNT(*) > 1;

-- 各 category_id に複数 categories 行がある場合、name の最新 (MAX(updated_at)) を採用
WITH src AS (
    SELECT
        c.id AS category_id,
        c.name,

-- products に対して、categories マスタの全 id を Upsert
-- (既存 category_id があれば name を更新、なければ INSERT)
MERGE INTO products AS tgt
USING (
    SELECT id, name FROM categories WHERE active = 1

-- (a) 範囲ロックを早めに取る (UPDATE 1 文で完結する場合)
UPDATE T1 WITH (UPDLOCK, HOLDLOCK)
SET status = 'fixed'
FROM T1 INNER JOIN ... ON ...
WHERE ...;

import {Action} from 'redux'



export enum    ActionNames{

   Increment = 'inc',

   Decrement = 'dec'

import {ActionNames, ActionType} from "../Actions/CounterAction";





export interface IState {

   num : number

import {combineReducers,createStore,Action} from 'redux'

import CounterReducer, {IState} from "../Reducers/CounterReducer";

import {ActionType} from "../Actions/CounterAction";



const rootReducer = combineReducers(

import {ReduxAction, ReduxState} from "../Store/store";

import {DecrementAmount, IncrementAmount} from "../Actions/CounterAction";

import {connect} from "react-redux";

import {Dispatch} from "react";

import Counter from "./Counter";

import React from "react";

import {IState} from "../Reducers/CounterReducer";

import {ActionDispather} from "./Container";



interface Props {

import React from 'react';

import ReactDOM from 'react-dom';

import * as serviceWorker from './serviceWorker';

import {Provider} from "react-redux";

import store from "./Store/store";

    Sub Main()

        Dim places As String() = {"東京", "大阪", "名古屋"}
        Dim combineStr = Strings.Join(places)
        Console.WriteLine(combineStr)