[英]How to print a table in sqlite3 along with column names in python using a loop and how exactly to get the column names?
[英]How to get Sqlite3 column names containing a value?
我有一个sqlite3表,其中包含0和1。我想获取值为1的列名称。我尝试了description和pragma方法,由于某种原因,结果不正确。
以下是我的尝试:
。去污
allResults = c.execute("SELECT * FROM db_1.hope5 WHERE Vehicle = '{}'".format(veh))
all_columnNames = [tup[0] for tup in allResults.description]
inputs_columnNames = all_columnNames[9:]
inputcheck = [tup[9:] for tup in allResults.fetchall()]
inputSelected = [val for i, val in enumerate(inputs_columnNames) if inputcheck[0][i] == 1]
语用
c = connection.cursor()
c.execute("PRAGMA TABLE_INFO(hope5)")
names = [tup[1] for tup in c.fetchall()]
names = names[2:]
result = c.execute("SELECT * FROM hope5 WHERE Vehicle = '{}' ".format(veh))
result = result.fetchall()
test = [names[index] for index, val in enumerate(result[0][2:]) if val==1]
桌子的形状
+----+-----+-----+-----+-----+-----+
| A | B | C | D | E | F |
+----+-----+-----+-----+-----+-----+
| 0 | 0 | 1 | 0 | 0 | 1 |
|----|-----|-----|-----|-----|-----|
| 1 | 0 | 0 | 0 | 1 | 0 |
+----+-----+-----+-----+-----+-----+
根据我上面的代码,结果需要为:
test = [A,C,E,F]
所以问题是:
inputSelected = [val for i, val in enumerate(inputs_columnNames) if inputcheck[0][i] == 1]
其中inputcheck [0]应该是j。 通过更改为以下内容,它可以工作:
inputSelected_append = []
for j in range(len(inputcheck)):
inputSelected = [val for i, val in enumerate(inputs_columnNames) if inputcheck[j][i] == 1]
inputSelected_append.append(inputSelected)
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