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Sql 如何计算特定重复记录的记录数?_Sql - Fatal编程技术网

Sql 如何计算特定重复记录的记录数?

Sql 如何计算特定重复记录的记录数?,sql,Sql,我有一个表名是Pattern S.No type Id_Section 1 A IPS 2 A IPS 3 A IPS 4 A IPS 1 B IPS 2 B IPS 3 B IPS 1

我有一个表名是Pattern

S.No      type      Id_Section
    1          A        IPS
    2          A        IPS
    3          A        IPS
    4          A        IPS
    1          B        IPS
    2          B        IPS
    3          B        IPS
    1          C        IPS
    2          C        IPS
    1          D        IPS
    2          D        IPS
我想要一个查询来计算记录,除了type=“c”记录…我尝试了和示例..但我得到了完整的记录计数..请任何人帮助我

SELECT COUNT(*) FROM Pattern WHERE type != 'C'
我对你的理解正确吗?

选择count(*)
SELECT count(*) 
FROM pattern
WHERE type <> 'C'
从模式 其中类型“C”
您能告诉我们您试过什么吗?