15位身份证号升级为18位的SQL语句

UPDATE 员工表 SET 身份证号=
  SUBSTRING(身份证号,1,6)+'18'+SUBSTRING(身份证号,7,9)+
  SUBSTRING('10X98765432',
  (
   CAST(SUBSTRING(身份证号, 1,1) AS INT)*7
  +CAST(SUBSTRING(身份证号, 2,1) AS INT)*9
  +CAST(SUBSTRING(身份证号, 3,1) AS INT)*10
  +CAST(SUBSTRING(身份证号, 4,1) AS INT)*5
  +CAST(SUBSTRING(身份证号, 5,1) AS INT)*8
  +CAST(SUBSTRING(身份证号, 6,1) AS INT)*4
  +1*2
  +8*1
  +CAST(SUBSTRING(身份证号, 7,1) AS INT)*6
  +CAST(SUBSTRING(身份证号, 8,1) AS INT)*3
  +CAST(SUBSTRING(身份证号, 9,1) AS INT)*7
  +CAST(SUBSTRING(身份证号,10,1) AS INT)*9
  +CAST(SUBSTRING(身份证号,11,1) AS INT)*10
  +CAST(SUBSTRING(身份证号,12,1) AS INT)*5
  +CAST(SUBSTRING(身份证号,13,1) AS INT)*8
  +CAST(SUBSTRING(身份证号,14,1) AS INT)*4
  +CAST(SUBSTRING(身份证号,15,1) AS INT)*2
  )
  % 11 + 1, 1)
WHERE LEN(身份证号)=15 AND SUBSTRING(身份证号,13,3) IN ('999','998','997','996')

-- 15位身份证号升级为18位，适用于19xx年出生的公民
UPDATE 员工表 SET 身份证号=
  SUBSTRING(身份证号,1,6)+'19'+SUBSTRING(身份证号,7,9)+
  SUBSTRING('10X98765432',
  (
   CAST(SUBSTRING(身份证号, 1,1) AS INT)*7
  +CAST(SUBSTRING(身份证号, 2,1) AS INT)*9
  +CAST(SUBSTRING(身份证号, 3,1) AS INT)*10
  +CAST(SUBSTRING(身份证号, 4,1) AS INT)*5
  +CAST(SUBSTRING(身份证号, 5,1) AS INT)*8
  +CAST(SUBSTRING(身份证号, 6,1) AS INT)*4
  +1*2
  +9*1
  +CAST(SUBSTRING(身份证号, 7,1) AS INT)*6
  +CAST(SUBSTRING(身份证号, 8,1) AS INT)*3
  +CAST(SUBSTRING(身份证号, 9,1) AS INT)*7
  +CAST(SUBSTRING(身份证号,10,1) AS INT)*9
  +CAST(SUBSTRING(身份证号,11,1) AS INT)*10
  +CAST(SUBSTRING(身份证号,12,1) AS INT)*5
  +CAST(SUBSTRING(身份证号,13,1) AS INT)*8
  +CAST(SUBSTRING(身份证号,14,1) AS INT)*4
  +CAST(SUBSTRING(身份证号,15,1) AS INT)*2
  )
  % 11 + 1, 1)
WHERE LEN(身份证号)=15 AND SUBSTRING(身份证号,13,3) NOT IN ('999','998','997','996')