dropprocedureifexistsp_while_do;createprocedurep_while_do()begindeclareiint;seti=1;whilei<=10doselectconcat('index :', i);seti=i+1;endwhile;end; call p_while_do(); FOR LOOP dropprocedureifexistsp_for_loop;createprocedurep_for_loop()begindeclareiint;seti=1; loop_example : loopselectconcat('index ->', i);seti=...
2. WHILE LOOP 3. FOR LOOP 使用FOR LOOP方式的独特之处在于它不需要显式的OPEN、 FETCH或CLOSE命令。 另外,FOR LOOP还使用了一个在代码块的声明部分从没有声明 过的一个变量 declare begin end; declare cursor c is select * from emp; v_emp c%rowtype; begin open c; loop fetch c into v_em...
变量IN [REVERSE] 初始表达式..终值表达式 LOOP 语句段 END LOOP [循环标签]; ORDBMS ORDBMS PL/SQL:循环嵌套 WHILE 条件1 LOOP 语句段11 WHILE 条件2 LOOP 语句段2 END LOOP; 语句段12 END LOOP; PL/SQL:循环嵌套 WHILE 条件1 LOOP 语句段11 WHILE 条件2 LOOP 语句段2 END LOOP; 语句段12 END LOOP...
in client. So, if I say: "You can execute any of my routines in any sequence and with any parameters you wish" it is not same,if I say: "You can access database through my application only". 2. What if I grant privileges (including CREATE SESSION) to users through non-default rol...
If we run it while we run our Java TopTen application from before, we can watch the memory use over time, or we can do something like take a heap dump and inspect what kind of objects we have using memory in our heap.$ java TopTen large.txt ...
In all of the artifact repository's that I've evaluated I have to see how I can maintain my repository in such a way that I can archive old stuff so I'm not looking at thousands of artifacts in the tree while still being able to have repeatable builds of old software. Not being ...
PL/SQLPL/SQL是一种块结构语言是一种块结构语言,,构成构成PL/SQLPL/SQL的基本单位是逻辑的基本单位是逻辑 块块,,块中可以嵌套子块块中可以嵌套子块,,以块为单位向以块为单位向OracleServerOracleServer传递数据传递数据 执行执行,,其块结构如下其块结构如下:: ...
PL/SQL程序由三设设成,明部分、设行部分、个即声 常设理部分。异 1-5 PL/SQL设的设如下:构 DECLARE /*明部分声:在此明声PL/SQL用到的设量,设型及游设 ,以及局部的存设设程和函数*/ BEGIN /*设行部分:设程及SQL设句,程序的主要部分即
WHILE C1%FOUND LOOP DBMS_OUTPUT.PUT_LINE(TO_CHAR(C1%ROWCOUNT)||' '||VNAME); FETCH C1 INTO VNAME; END LOOP; END; *属性 *含量 %FOUND 布尔型属性,当最近一次该记录时成功返回,则值为TRUE %NOTFOUND 布尔型属性,它的值总与%FOUND 属性的值相反 %ISOPEN 布尔型属性,当光标是打开时返回TRUE %ROW...
PL/SQL(ProceduralLanguage/SQL)是 ORACLE在标准SQL语言上进行过程性扩 展后形成的程序设计语言。 从ORACLE6开始,ORACLE公司将变量、控 制结构,过程,函数等结构化程序设计的要 素与SQL语言结合,在标准SQL语言的基础 上开发了自己的PL/SQL语言。 允许嵌入SQL语句 ...