[begin_label:]REPEAT--循环体--可以在循环体中执行SQL语句UNTILconditionENDREPEAT[end_label] 示例 代码语言:javascript 代码运行次数:0 运行 AI代码解释 DELIMITER//CREATEPROCEDURERepeatLoopExample()BEGINDECLAREcounterINTDEFAULT0;REPEATSETcounter=counter+1;--输出当前计数器值SELECTcounter;--当计数器达到10时退...
davice I am not sure about DO-WHILE IN MS SQL Server 2008 but you can change your WHILE loop logic, so as to USE like DO-WHILE loop. 1) Example of WHILE Loop DECLARE@intFlagINTSET@intFlag=1WHILE (@intFlag<=5)BEGINPRINT@intFlagSET@intFlag=@intFlag+1ENDGO ResultSet: 1 2 3 4 5 2...
1) Simple PL/SQL WHILE loop example The following example illustrates how to use the WHILE loop statement: DECLARE n_counter NUMBER := 1; BEGIN WHILE n_counter <= 5 LOOP DBMS_OUTPUT.PUT_LINE( 'Counter : ' || n_counter ); n_counter := n_counter + 1; END LOOP; END; Code languag...
只要给定条件为真,PL/SQL编程语言中的WHILE LOOP语句重复执行目标语句。 语法 WHILE LOOP语句的语法如下 - WHILEconditionLOOP sequence_of_statementsENDLOOP; 示例 以下是有关WHILE LOOP语句的应用示例 - SETSERVEROUTPUTONSIZE1000000;DECLAREa number(2) :=10;BEGINWHILE a<20LOOP dbms_output.put_line('value o...
PL/pgSQL while loop example The following example uses the while loop statement to display the value of a counter: do $$ declare counter integer := 0; begin while counter < 5 loop raise notice 'Counter %', counter; counter := counter + 1; end loop; end; $$; Output: NOTICE: Counte...
Example 1: while Loop using System; namespace Loop { class WhileLoop { public static void Main(string[] args) { int i=1; while (i<=5) { Console.WriteLine("C# For Loop: Iteration {0}", i); i++; } } } } When we run the program, the output will be: C# For Loop: Iterati...
FORALL语句会从PL/SQL引擎向SQL引擎批量发送INSERT、UPDATE和DELETE语句,而不是每次发送一条语句。例如,考虑下面的数值型FOR循环会10次迭代执行INSERT语句: FOR i IN 1..10 LOOP INSERT INTO table_name VALUES (...); END LOOP; 该INSERT语句会从PL/SQL引擎发送到SQL引擎10次。也就是说,会发生10次上下文其...
-- loop DECLARE v_num VARCHAR2(100); CURSOR c_num IS SELECT NAME FROM test_t WHERE ROWNUM < 600000; BEGIN dbms_output.enable(800000); OPEN c_num; LOOP FETCH c_num INTO v_num; EXIT WHEN c_num%NOTFOUND; --未找到数据 END LOOP; CLOSE c_num; END; -- while DECLARE v_num3 VARCH...
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Example 1: Display Numbers from 1 to 5 // C++ Program to print numbers from 1 to 5 #include <iostream> using namespace std; int main() { int i = 1; // while loop from 1 to 5 while (i <= 5) { cout << i << " "; ++i; } return 0; } Run Code Output 1 2 3 4 ...