如何使用基于json的python创建新表并向表中插入数据

我正在尝试创建一个新的数据库表，并将数据插入该表中。例如，我有两个数据表，分别是表列名和列数据类型。我想创建这两个表并插入数据以更正表名。我使用了带有连接参数的python函数。请求你的建议来实现这一点

json数据 Python代码 嘿， 我已经对它进行了修改和测试。 以下是重构代码：

import json
import psycopg2
from psycopg2 import sql
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
def create_table(data_JSON):
    try:
        filedata = json.loads(data_JSON)
        db_name = filedata[0]['dbName']
        print(db_name)
        
        con = psycopg2.connect(user='postgres', host='127.0.0.1', database = db_name, password='password')
        print ("Opened database successfully")
        con.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
        cur = con.cursor()
        table_names = filedata[0]['tableName'] 
        table_columns = filedata[0]['tableColumn']
        table_datum = filedata[0]['tableData']
        for table_name, table_column, table_data in zip(table_names, table_columns, table_datum):
            column_to_insert = ""
            for td in table_column:
                column_to_insert += td['title'] + " " + td['type'] +", "
            
            column_to_insert = column_to_insert[:len(column_to_insert) - 2]
            cur.execute(f"CREATE TABLE {table_name} ({column_to_insert});")
        
            for row in table_data:
                
                keys = ", ".join(row.keys())
                values = ""
                for val in row.values():
                    values += f"'{val}', "
                
                values = values[: len(values) - 2]
                print(keys, values)
                cur.execute(f"INSERT INTO {table_name} ({keys}) VALUES ({values});")
            con.commit()
        cur.close()
        con.close()
    except Exception as e:
        print(e)
        return False
    return True

---

这是一些代码。如果你遇到错误，写下它：）我没有因此得到任何错误。因为你没有打印它，尝试修改

异常除外：将False

返回到

异常除外为e:print（e）

现在也显示错误…验证你的数据库，那么为什么这段代码可以工作？使用给定的JSON数据进行测试。如果它没有回答你的问题，那么它就不理解你的问题。它绝对像我尝试的那样起作用。你让我开心。谢谢@sindbadaways欢迎兄弟。

import json
import psycopg2
from psycopg2 import sql
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
def create_table(data_JSON):
    try:
        filedata = json.loads(data_JSON)
        db_name = filedata[0] ['dbname']
        con = psycopg2.connect(user='postgres', host='127.0.0.1', database = db_name, password='test@123')
        con.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
        cur = con.cursor()
        for sheet in data_dict[0]['tableName']:
            sheet_name = sheet   
        for z in data_dict[0]['tableColumn']:
            for column in z[0][title]:
                column_name = column
            for dtype in z[0]['type']:
                datatype = dtype
                cur.execute(f"CREATE TABLE {sheet_name}({column_name} {data_type});")
        for key,value in data_dict[0]['tableData']:
            cur.execute(f"INSERT INTO {sheet_name}({column_name})VALUES ({value});")
            con.commit()
            cur.close()
            con.close()
    except Exception:
        return False
    return True

import json
import psycopg2
from psycopg2 import sql
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
def create_table(data_JSON):
    try:
        filedata = json.loads(data_JSON)
        db_name = filedata[0]['dbName']
        print(db_name)
        
        con = psycopg2.connect(user='postgres', host='127.0.0.1', database = db_name, password='password')
        print ("Opened database successfully")
        con.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
        cur = con.cursor()
        table_names = filedata[0]['tableName'] 
        table_columns = filedata[0]['tableColumn']
        table_datum = filedata[0]['tableData']
        for table_name, table_column, table_data in zip(table_names, table_columns, table_datum):
            column_to_insert = ""
            for td in table_column:
                column_to_insert += td['title'] + " " + td['type'] +", "
            
            column_to_insert = column_to_insert[:len(column_to_insert) - 2]
            cur.execute(f"CREATE TABLE {table_name} ({column_to_insert});")
        
            for row in table_data:
                
                keys = ", ".join(row.keys())
                values = ""
                for val in row.values():
                    values += f"'{val}', "
                
                values = values[: len(values) - 2]
                print(keys, values)
                cur.execute(f"INSERT INTO {table_name} ({keys}) VALUES ({values});")
            con.commit()
        cur.close()
        con.close()
    except Exception as e:
        print(e)
        return False
    return True