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CREATE TABLE ordine_al_fornitore ( id int not null auto_increment, fca_ordinati json, primary key (id) ); INSERT INTO ordine_al_fornitore (fca_ordinati) VALUES ('{ "0": [ 21, "Pallet da 1250kg (50 * Sacco da 25kg)", "1250", "kg" ], "1": [ 21, "Sfuso", "12", "kg" ], "2": [ 12, "Sacco da 5kg", "10", "kg" ] }'),('{ "0": [ 21, "Pallet da 1250kg (50 * Sacco da 25kg)", "1250", "kg" ], "1": [ 21, "Sfuso", "12", "kg" ], "2": [ 12, "Sacco da 3kg", "10", "kg" ] }'),('{ "0": [ 21, "Pallet da 1250kg (50 * Sacco da 25kg)", "1250", "kg" ], "1": [ 21, "Sfuso", "12", "kg" ], "2": [ 12, "Sacco da 5kg", "10", "kg" ] }');
Records: 3 Duplicates: 0 Warnings: 0
SELECT COUNT(*) FROM ordine_al_fornitore WHERE JSON_CONTAINS( JSON_EXTRACT(fca_ordinati, '$.*[1]'), '"Sacco da 5kg"' -- note the string needs to have quotes );
COUNT(*)
2