exit when 退出的条件;end loop;loop内容exit when xxxend loop;可以用decode函数实现类似的功能可以
In the above script, the print statement, executed at least once, if you use the while statement, first the condition will be checked after the count is initialized to 1, at first iteration itself the condition will be false,so print statement won’t get executed, but in do while first ...
Oracle 中没有这个类型,在转表的时候会把text类型转成BLOB类型,BLOB类型的数据insert存储时很不方便,需要单独的将含有text类型的表的text类型转成varchar2类型(可以存储4000个字符32767个 字节) 6.插入数据库时,对varchar类型的值引起来的时候,单和双引号没有统一 Mysql 中只要是varchar字段,插入数据时对应值单双引...
1.在oracle中,数据表别名不能加as,如: selecta.appnamefromappinfo a;--正确 selecta.appnamefromappinfoasa;--错误 也许,是怕和oracle中的存储过程中的关键字as冲突的问题吧 2.在存储过程中,select某一字段时,后面必须紧跟into,如果select整个记录,利用游标的话就另当别论了。 selectaf.keynodeintoknfromAPP...
请注意,for ... in对Array的循环得到的是String而不是Number。 while for循环在已知循环的初始和结束条件时非常有用。而上述忽略了条件的for循环容易让人看不清循环的逻辑,此时用while循环更佳。 while循环只有一个判断条件,条件满足,就不断循环,条件不满足时则退出循环。比如我们要计算100以内所有奇数之和,可以用...
The Do While statement processes the code that the statement_block argument identifies repeatedly until the statement meets the value that the condition argument contains. The condition argument occurs at the end of the loop. Siebel eScript tests the condition only after the loop runs. A Do While...
Sometimes when tuning/improving the performance of a SQL statement, it can be useful to immediately ascertain the difference in run-time statistics (resource usage, latch contention, etc), especially on development environments before rolling out the SQL into production. While Oracle supplies us with...
DO[s[,]]WHILE(e) Parameter Description s Label of an executable statement e Logical expression Description Execution proceeds as follows: The specified expression is evaluated. If the value of the expression is true, the statements in the range of theDO WHILEloop are executed. ...
Conclusion question: How many ways of writing a loop in VBScript? My answer is 7: "For ... Next". "While ... Wend". "Do While ... Loop". "Do Until ... Loop". "Do ... Loop While". "Do ... Loop Until". "For Each ... Next" - Used with arrays and collections. See ...
while (rslt.next()) { System.out.println(rslt.getString(1)); } Python importar cx_Oracle # Formato da string de conexão: [username]/[password]@//[hostname]:[port]/[DB service name] con = cx_Oracle.connect("[Nome do Usuário]/[Senha]@//localhost:1521/XEPDB1") cur = con.curs...