関連ワード:  string_agg alternative in sql server    string_agg alternative in sql server 2016    string_agg alternative in sql server 2008    string_agg alternative in sql server 2012    string_agg alternative in sql server 2014    string_agg equivalent in sql server 2016    string_agg equivalent in sql server 2014    string_agg equivalent in sql server    string_agg equivalent in sql server 2012    alternative function for string_agg in sql server