private const string SQL_SELECT_ArchvID= "SELECT @FiledNames FROM @TableName WHERE ArchvID= @FiledValues "; /// <summary> ...
.參考官方文檔 if:字符判斷 choose when, otherwise :分支選擇 trim where, set :字符串截取 其中where標簽封裝查詢條件,set標簽封裝修改條件 foreach .if案例 在EmployeeMapper接口中添加一個方法: 攜帶了哪個字段,查詢條件就帶上哪個字段的值 public List lt Employee gt getEmployeeByC ...
2017-09-07 20:25 0 14573 推薦指數:
private const string SQL_SELECT_ArchvID= "SELECT @FiledNames FROM @TableName WHERE ArchvID= @FiledValues "; /// <summary> ...
完整例子 ...
;!--> 注意這里的$ 如果字符串直接拼接要用$,#默認會在字符串變量前面加引號的 --> ...
begin /**procedure body**/if(m_parameter='') thenset @sqlStr=concat('select id,title,description,ms ...
10.1 if標簽(屬性:test(判斷條件)) 缺點:如果僅僅是第二個條件滿足導致sql語句出錯(故使用if+where) 10.2 if+where ( where標簽會知道如果它包含的標簽中有返回值的話,就會插入where 若其以and或or開頭會將and或or剔除 ...
Mybatis的動態sql拼接語句 1.主配置文件SqlMapConfig.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE configuration PUBLIC ...
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