使用DECLARE定义局部变量 在流程语句的分析中,我们在存储过程中使用变量的声明与设置,由于这些变量也只能在存储过程中使用,因此也称为局部变量,变量的声明可以使用以下语法: DECLARE 变量名[,变量名2...] 数据类型(type) [DEFAULT value]; DECLARE num INT DEFAUL...Array...
isArray():boolean:判断该类型是否是数组。 isEnum():boolean:判断该类型是否是枚举类型。 isInterface():boolean:判断该类型是否是接口。 isPrimitive():boolean:判断该类型是否是基本类型,即是否是int,boolean,double等等。 isAssignableFrom(Class cls):boolean:判断这个类型是否是类型cls的父(祖先)类或父(祖先)接口。
int i=sm.executeUpdate() --ResultSet结果集 rs表示结果集的游标;指向第一行记录的最上面;指向头; rs.next ( )取出第一条; rs.getInt(1) 需要首先需要rs.next(); 这会导致rs游标向下指一下; rs.getInt(1) rs.getString(2) 这时,rs可以取出数据库中需要的信息了; ---预编译 statement把sql语句发送...
Declare an array initialized as a no-element collection. SQL> SQL> SQL> DECLARE 2 TYPE integer_varray IS VARRAY(3) OF INTEGER; 3 intArray INTEGER_VARRAY := integer_varray(); 4 BEGIN 5 FOR i IN 1..3 LOOP 6 dbms_output.put ('Integer Varray:'||i); 7 dbms_output.put_line(':'|...
Some kind of serialization available in iPhone OS? Is that practically possible or should I quickly forget about that? I am making a tiny app that stores some inputs in an NSMutableArray. When the use... How to use thred to let Server communicate with client ...
Processing an array of values inside a procedure/ function is a common requirement. The question arises quite often, especially if you communicate with Oracle specialists. For instance, they may seek something like SQL declare array of strings. Oracle has arrays, but the problem is, there aren’...
C program to define an alias to declare strings#include <stdio.h> #include <string.h> #define MAXLEN 50 typedef char CHRArray[MAXLEN]; typedef unsigned char BYTE; int main() { CHRArray name; CHRArray city; BYTE age; //assign values strcpy(name, "Amit Shukla"); strcpy(ci...
#include <iostream> #include <vector> using namespace std; void show(const char *msg, vector<int> vect); int main() {//from w w w . j a v a2s . co m vector<int> v(10); for(unsigned i=0; i < v.size(); ++i) v[i] = i*i; show("Contents of v: ", v); vector<...
* null or an empty array if none. */publicvoidsetDeclaredInterfaces(String[]interfaces){clearDeclaredInterfaces();if(interfaces!=null)for(inti=0;i<interfaces.length;i++)declareInterface(interfaces[i]);} 代码来源:net.sourceforge.serp/serp ...
import java.util.Scanner; public class StudentGradeSystem { public static void main(String[] args) { // Step 1: Declare Variables int[] scores; // Declare an array of integers called scores. String[] names; // Declare an array of strings ...