Question

我有一个要求，我应该从用户那里获取3个动态值，并根据它的匹配与存在的值列表进行比较，我需要使用case语句将条件添加到where子句中。 / p>

var privateKey = "-----BEGIN RSA PRIVATE KEY-----\n" + "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" + "\n-----END RSA PRIVATE KEY-----"
var publicKey = "-----BEGIN PUBLIC KEY-----\n" + "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDCFENGw33yGihy92pDjZQhl0C36rPJj+CvfSC8+q28hxA161QFNUd13wuCTUcq0Qd2qsBe/2hFyc2DCJJg0h1L78+6Z4UMR7EOcpfdUE9Hf3m/hs+FUR45uBJeDK1HSFHD8bHKD6kv8FPGfJTotc+2xjJwoYi+1hqp1fIekaxsyQIDAQAB" + "-----END PUBLIC KEY-----"

func main() {
    privKey := parse(privateKey);
    pubKey := parse(publicKey);
}

Answer 1

CASE可以在WHERE中使用，但是-语法应该可以。你不是。

这是一个显示如何的示例（另外，请注意，我为date_closed使用了日期文字；您将其与字符串进行了比较。

select *
from   my_dbsource
where  1=1
and lp_where_rep = case when :lp = 'LIFESHEILD' and :m = 'AP' and :status = 'Processed' then 'P' 
                        when manual_flag = 'P' then 'X'
                        else 'Y'
                   end
and     data_source in ('LIFESHIELD') 
and     date_closed >= date '2019-07-15'
and     date_closed <= date '2019-07-16'

Answer 2

如果您想在WHERE子句中使用大小写，则可以使用以下内容：

AND (CASE WHEN :LP = 'LIFESHEILD' AND :M = 'AP' AND :STATUS = 'Processed' THEN flag ELSE 'P' END) = 'P'
AND (CASE WHEN :LP = 'LIFESHEILD' AND :M = 'AP' AND :STATUS = 'Processed' THEN Manual_FLAG ELSE 'P' END) = 'P'

干杯！

使用CASE语句比较3个条件并执行该语句

2 个答案: