SQL insert statement - FILL null values for all columns except some

Question

我有一个插入语句，其中我只需要填写 70 列中的 15 列 - 所有其他列都可以保留 NULL。我想找到一种方法来在较短的事情中编写此语句，而不必将所有 null 写为等ETC

INSERT INTO my_table
SELECT
division_id
,sub_division_id AS sub_division_id
,store
,store_id AS store_id
,store_address
,zip_code 
,'202306' AS week
,'2023-02-02' AS date
,'Type' AS type
,'other_string'  AS blah
,'Name' AS Name
,NULL AS unimportant_column
,NULL AS unimportant_column_2
,NULL AS unimportant_column_3
,NULL AS unimportant_column_4
,NULL AS unimportant_column_5
,NULL AS unimportant_column_6
,NULL AS unimportant_column_7
,NULL AS unimportant_column_8
,household_id
,NULL AS unimportant_column_9
,NULL 
,NULL
,id
,email AS emailaddress
,token
,NULL AS reg
,NULL AS blah
,NULL AS type
,NULL AS del 
,NULL AS las
,NULL AS las
,NULL AS fir
,NULL AS las
,NULL AS pro
,NULL AS pro_2
,NULL AS pro_3
,NULL AS prm
,NULL AS pro_5
,NULL AS pro_6
,NULL AS pro_7
,NULL AS pro_8
,NULL AS j4
,NULL AS j4_2
,NULL AS off_1
,NULL AS off02
,NULL AS off03
,NULL AS off04
,NULL AS off05
,NULL AS off_06
,NULL AS off07
,NULL AS of08
,NULL AS off09
,NULL AS off10
,NULL AS off11
,NULL AS off12
,NULL AS off13
,NULL AS of14
,NULL AS off15
,NULL AS off16
,NULL AS off17
,NULL AS off18
,NULL AS off19
,NULL AS off20
,NULL AS off21
,NULL AS off22
,NULL AS off23
,NULL AS off24
,NULL AS dade
,NULL as edyd

FROM some_table x

where flag1 = 1

and flag2 = 7



GROUP BY 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42
,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69 ;

我希望它是这样的

INSERT INTO my_table
SELECT
division_id
,sub_division_id AS sub_division_id
,store AS Store
,store_id AS store_id
,store_address as store_nm_addr
,zip_code as zip_code
,'202306' AS week
,'2023-02-02' AS date
,'TYPE' AS TYPE
,'other_string'  AS blah
,'Name' AS name
,household_id as household_id
,id as ID
,email AS emailaddress
,token_txt as token
FROM some_table x

where flag1 = 1

and flag2 = 7


;

当然这不起作用，因为您收到此错误：SQL 编译错误：插入值列表与期望 70 的列列表不匹配但得到 15

但是，有什么方法可以仅插入您需要的值并将 rest 值默认为 null 值？ “my_table”表必须有 70 列 - 即使其他列中的值为 null

Answer 1

当前插入的问题是，如果您没有指定任何列名，那么它默认为期望所有列。 如果您明确列出所需的目标列，则省略的名称将默认接收 null 值。

INSERT INTO my_table (division_id, sub_division_id,
    Store, store_id, store_nm_addr, zip_code, week, date, TYPE, blah, name,
    household_id, ID, emailaddress, token)
SELECT
    division_id,
    sub_division_id,
    store,
    store_id,
    store_address,
    zip_code,
    '202306',
    '2023-02-02',
    'TYPE',
    'other_string',
    'Name',
    household_id,
    id,
    email,
    token_txt
FROM some_table x
WHERE flag1 = 1 AND flag2 = 7;