/**
* 根據引數條件查詢user
* @param user
* @return
*/user getuserbyparameter
(user user)
;/**
* 修改一條user記錄
* @param user
*/void
update
(user user)
;/**
* 根據id集合獲取相對應user記錄
* @param idlist
* @return
*/list
getuserbycollection
(list
idlist)
;
"getuserbyparameter"
resulttype
="user"
>
select * from t_user where 1 = 1
test
="username != null"
>
and username = #
if>
test
="password != null"
>
and password = #
if>
select
>
"getuserbyparameter"
resulttype
="user"
>
select * from t_user
>
test
="username != null"
>
and username = #
if>
test
="password != null"
>
and password = #
if>
where
>
select
>
"update"
>
update t_user
>
test
="username != null"
>
username = #,if
>
test
="password != null"
>
password = #,if
>
set>
where id = #
update
>
字首where運用
"getuserbyparameter"
resulttype
="user"
>
select * from t_user
prefix
="where"
prefixoverrides
="and | or"
>
test
="username != null"
>
and username = #
if>
test
="password != null"
>
and password = #
if>
trim
>
select
>
字首set運用
"update"
>
update t_user
prefix
="set"
suffixoverrides
=","
>
test
="username != null"
>
username = #,if
>
test
="password != null"
>
password = #,if
>
trim
>
where id = #
update
>
/**
* 根據id集合獲取相對應user記錄
* @param idlist
* @return
*/list
getuserbycollection
(@param
("idlist"
) list
idlist)
;
"getuserbycollection"
resulttype
="user"
>
select * from t_user where id in
collection
="idlist"
item
="item"
open
="("
separator
=","
close
=")"
>
#foreach
>
select
>
③測試
@test
public
void
test06()
}
⑤結果
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帶 引數的游標 declare dept code emp.deptno type 宣告列型別變數三個 emp code emp.empno type emp name emp.ename type cursor emp cur deptparam number is select empno,en...
SQ 模糊查詢
between.and.在資料庫內部是做作特殊優化的,執行效率比 and 等這種方式快 between a and b 相當於 字段 a and欄位 b 例如 select from dbo.mystudent where s age between 20 and 30 between and還可以...