编写for循环: createorreplaceproceduretest_procisv_date date;--定义变量cursorcurisselect*fromldcodewhererownum<10;--定义游标beginselectsysdateintov_datefromdual;--游标for循环开始fortempincur loop--temp为临时变量名,自己任意起Dbms_Output.put_line(temp.Code);--输出某个字段,使用"变量名.列名"即可。end...
TARGET_RESULTS :=TARGET_RESULTS||') '||ALIAS||' ';--循环拼接关联SQLFORTEMPINDATA LOOP--给待拼接的字段赋值STR :=TEMP.ASSOCIATION;--在末端追加逗号,否则最后一个字符无法识别STR :=STR||',';--计算逗号数量SELECTREGEXP_COUNT(STR,',')INTOSIGNSFROMDUAL;--赋最大值SI_MAX :=SIGNS;--清空关联...
复制 CREATEORREPLACEPROCEDURETESTAS--定义游标,取该表的前10条记录(通过ID排序)CURSORDATAISSELECT*FROM(SELECTa.*,ROWNUMRNFROMIEW_INDEXaORDERBYID)WHERERN<=10;BEGIN--循环10次,输出ID、INDEX_NAMEFORTEMPINDATALOOPDBMS_OUTPUT.PUT_LINE(TEMP.ID||','||TEMP.INDEX_NAME);ENDLOOP;END;--输出结果1001,本年...
for xx in (select 语句) 这是隐式游标，这个结构中不能带参数，或者说普通的游标，隐式或显式的都不能带参数，使用参数游标或引用（动态）游标。例如：declare cursor cur(C_value number) is select col_A,col_B from tableA where col_C=C_value ;begin for xx in cur loop --处理 end...
for (const prop in obj) { console.log(`obj.${ prop } = ${ obj[prop] }`); } // obj.color = red // obj.name = temp 如果你只要考虑对象本身的属性,而不是它的原型,那么使用getOwnPropertyNames()或执行hasOwnProperty()来确定某属性是否是对象本身的属性。
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#define SAFE_ATOM_CODE(...){uint32_t CONNECT2(temp, __LINE__) = __disable_irq;__VA_ARGS___set_PRIMASK((CONNECT2(temp, __LINE__)));} 因此可以很容易的通过如下的代码来保护关键的寄存器操作: /**fn void wr_dat (uint16_t dat)brief Write data to the LCD controllerparam[in] dat...