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 : loopselectco...
综上所述,我们可以通过使用do-while循环节点进行12次循环来方便的计算每月的数据,同时使用3个SQL节点分别计算近1月(30天)、近2月(60天)、近3月(90天)的数据。通过使用${dag.loopTimes}来代表当前循环到第几个月,从而在SQL节点中计算出当月第1天的分区及前1月第1天、前2月第1天、前3月第1天的分区。最...
4.while 循环 WHILE V_TEST=1 LOOP BEGIN XXXX END; END LOOP; 5.变量赋值 V_TEST := 123; 6.用for in 使用cursor ... IS CURSOR cur IS SELECT * FROM xxx; BEGIN FOR cur_result in cur LOOP BEGIN V_SUM :=cur_result.列名1+cur_result.列名2 END; END LOOP; END; 7.带参数的cursor CU...
Can we optimise While Loop in sql server for large number of data? Can we pass parameters to the trigger?(Beginner) Can we RAISERROR inside MERGE Statement Can we select Bottom 1000 rows of a database Table from SSMS 2008 R2? Can we set value in a variable inside a select statement ...
[YOUR_DATABASE_TABLE]--Initialize the @max variable. We'll use thie variable in the next WHILE loop.SELECT@max=COUNT(ID)FROM@myTable--LoopWHILE@counter<=@maxBEGIN--Do whatever you want with each row in your table variable filtering by the Id columnSELECTColumn1, Column2FROM@myTableWHERE...
The script works already, however, I am having trouble with taking the id from python and putting it in the sql query. Is there a way I can sort of close out of the query, enter the id variable, and resume the sql query with mysql.connector? This is what it looks like right no...
> b. in perl / java, write and run the 4 queries independently Should be about the same - just use whatever fits your overall software design better. > The pl/pgsql function does not allow commit. So, in the function , if > any step went wrong, all 4 steps rollback. While in ja...
还有这个...也看不懂Dim mrc As ADODB.Recordset txtsql = "select DISTINCT 年级 from class " Set mrc = ExecuteSQL(txtsql) mrc.MoveFirst Combo1(0).Clear Do While Not mrc.EOF Combo1(0).AddItem mrc.Fields(0) mrc.MoveNext Loop Combo1(0).ListIndex = 0 txtsql = "select DISTINCT 专业...
--SQL其他语句 set @count = @count -1;end 这个是while循环。但一般我们不经常这样做，他还有其他的方式可以达到这种效果。declare @count;set @count = 6;:Loop --SQl其他语句 set @count = @count -1;if(@count<0)begin goto :loop end goto :end :end 因此为while是加入的，性能不如...
Explain the IN and LIKE operators as they are used in the where clause of a select statement.How to do loop termination by user query?Write a single SQL command to increase all price rental fee values by $0.50.In SQL, process a pizza order for a new customer...