from sklearn.datasets import load_iris

'''獲取鳶尾花資料，其中X，y為二維陣列'''
X,y = load_iris(return_X_y=True)
'''建立指定鳶尾花類別名稱的列表'''
Species = ['setosa','versicolor','virginica']

'''通過操作遊標執行SQL語句，以建立iris表'''
cur.execute("CREATE TABLE IF NOT EXISTS iris"
            "(Sepal_Length float,"
            "Sepal_Width float,
 
"
            "Petal_Length float,"
            "Petal_Width float,Species char(20)"
            ")")

'''構造將X，y資料一次性插入iris的SQL語句'''
BaseSQL = "INSERT INTO iris VALUES"

for i in range(X.shape[0]):
    BaseSQL += "({},{},{},{},'{}'),".format(X[i,0],X[i,1],X[i,2],X[i,3],Species[y[i]])

'''去除末尾多餘的逗號'''
BaseSQL 
 
= BaseSQL[:-1]

'''執行插入鳶尾花資料的SQL語句'''
cur.execute(BaseSQL)