Question

如何使用pymssql对先前查询的结果运行查询？

这是我尝试过的：

from os import getenv
import pymssql
import pandas as pd
import arcpy
import csv
from decimal import Decimal
from functools import partial
import time
from datetime import datetime

####### connect to DB #######
conServer = r"myserver\myserver"
condb = "some database"

conn = pymssql.connect(server=conServer, database=condb)
cursor = conn.cursor()

##### query 1 #####
query1 = "DECLARE 
             SOMETHING
          SELECT 
             SOME FIELDS 
          FROM 
             dbo.SOMETABLE 
          WHERE 
             SOME CONDITIONS"

resQuery1 = cursor.execute(query1)

##### query 2 #####
query2 = """DECLARE @something TINYINT = 1
                            ;WITH VARIABLE1 AS (
    SELECT
        SOME FIELDS
    FROM
        SOME TABLES WITH A BUNCH OF JOINS
    WHERE
        SOME CONDITIONS
    GROUP BY
        FIELD2
        ), FIELD3 AS (
        SELECT
            THIS,
            Sum(THAT) as SUMTHAT
        FROM %s 
        GROUP BY
            FIELD2
        )
        SELECT
            REST OF THE QUERY"""

cursor.execute(query2,  (resQuery1))

试图通过％s无效。

我还尝试使用arcpy将查询结果保存在in_memory表中，因为最终必须使用以下代码在ArcGIS Server中运行该查询：

########## in memory table
gis_temp_loc_loss_adj = "temp_loc_loss_adj" + datestamp
query1Table = arcpy.CreateTable_management(r"in_memory", gis_temp_loc_loss_adj)

columnNames = tuple(map(str, [i[0] for i in cursor.description]))

addfield = partial(
    arcpy.AddField_management,
    query1Table
    )

for field in columnNames:
    addfield(field)

with arcpy.da.InsertCursor(query1Table, columnNames) as insCur:
    for row in cursor:
        insCur.insertRow(row)

但是我找不到一种方法来读取in_memory表的名称并将其包含在SQL查询中。

在cursor.execute中我做错了什么，因为它没有接听％s？另外，如何将query1的结果保存在内存中并在query2中使用呢？

为澄清起见，我无法在sql服务器上进行写操作，因此无法在SQL DB中创建临时表

pymssql从上一个查询运行查询

0 个答案: