Question

我想将以下字典的结果插入数据库（我正在使用PostgreSQL）：

companies_list = { '00001': 'A', '00002': 'B', '0010': 'Z'}

运行代码和打印后该字典的结果将显示以下内容（作为示例）：

con = None
con = psycopg2.connect("dbname = 'testdb' user='user'")
cur = con.cursor()

cur.execute("CREATE TABLE companies_info(code TEXT PRIMARY KEY, short_name TEXT)")


query = "INSERT INTO companies_info ( code, short_name) VALUES ( %(code)s, %(short_name)s)"
cur.executemany(query, companies_list)

con.commit()
con.close()

所以当我试图将上面的字典插入下面的数据库（代码）时：

cur.executemany(query, companies_list)
TypeError: string indices must be integers, not str

我得到以下内容：

Friend Function CopyTo(Of T As DtaRow)(Optional ByVal ParentIn As DtaTable = Nothing) As T

任何人都可以解决他的错误吗？

Answer 1

code = ['00001', '00002', '0010']
short_name = ['A', 'B', 'Z']
companies_list = [tuple((t,)) for t in zip(code, short_name)]
query = "insert into companies_info (code, short_name) values %s"
cursor.executemany(query, companies_list)

使用Python将字典结果存储到数据库（PostgreSQL）

1 个答案: