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並前往https://laracasts.com/discuss/channels/eloquent/l-56-where-condition-on-json-columns

[L 5.6] Where condition on JSON columns - Laracasts

Content::where(DB::raw('JSON_LENGTH(`mycolumn`, \'$."programStages"\')'), '=', 0)->pluck('id') Content::where(DB::raw('JSON_LENGTH(`mycolumn`, \'$.

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