declare type row_num_type is table of number index by simple_integer; type row_text_type is table of varchar2(10) index by simple_integer; row_num_tab row_num_type; row_text_tab row_text_type; v_total number; sql_stmt varchar2(300);begin for i in 1..10 loop row_num_tab(i) ...
PKNVARCHARNameDestinationTableINTIDPKNVARCHARcontains 序列图 使用序列图可以清晰地展示游标的工作流程。以下是一个序列图,说明数据是如何从SourceTable插入到DestinationTable的: SQL Server用户DestinationTableSourceTableSQL Server用户loop[遍历数据]定义游标SELECT ID, NameFETCH NEXTINSERT INTO DestinationTableFETCH NEXT...
2.使用for loop、while do 例如: DECLARE @index int SET @index=100 WHILE @index>0 BEGIN select @index set @index=@index-1 END。 SQL循环语句 declare @i int set @i=1 while @i<30 begin insert into test (userid) values(@i) set @i=@i+1 end --- while 条件 begin 执行操作 set @...
while((select min(score) from tb_table)<60) begin update tb_table set score =score*1.01 where score<60 if (select min(score) from tb_table)>60 break else continue end 数据开发-经典 1.按姓氏笔画排序: Select * From TableName Order By CustomerNameCollate Chinese_PRC_Stroke_ci_as //从...
SQL Server存储过程中While循环的替代方法 sql sql-server tsql 我有一个存储过程,在这个过程中,a用键字段填充一个基表,然后循环遍历该表以获得这些键字段,从而重新查询源数据表以获得详细的计数。我遇到的问题是,当基表中有很多行时,SP需要很长时间才能运行。我已经将源数据加载到临时表中,创建了索引,并使基...
SQLSERVER中实现循环操作 1.可以使⽤游标 2.就是直接使⽤for loop、while do 我们使⽤SQL语句处理数据时，可能会碰到⼀些需要循环遍历某个表并对其进⾏相应的操作（添加、修改、删除），这时我们就需要⽤到咱们在编程中常常⽤的for或foreach，但是在SQL中写循环往往显得那么吃⼒，翻遍⽹上的资料，...
The procedure in the remote server is executed, and the result sets are returned to the local server and loaded into the table in the local server. In a distributed transaction, execute_statement cannot be issued against a loopback linked server when the connection has multiple active result ...
1, ''Server Process ID'''); SELECT @PID = convert(INT, (REPLACE(REPLACE(TEXT, 'Server Process ID is ', ''), '.', ''))) FROM @error_log WHERE TEXT LIKE ('Server Process ID is%'); PRINT 'SQL Server PID: ' + convert(VARCHAR(6), @PID); --Loop to monitor the spinlock ...
INSERT INTO @myTable VALUES (@n, DATEADD(wk,@n,@firstWeek)); SELECT @n = @n + 1 IF @n > 52BREAKEND The BREAK command is useful for ending execution. If WHILE blocks are nested, then the inner most loop is exited. Using CONTINUE to Reset a Loop ...
U1: Rs1=Command1.Execute("insert sometable EXEC usp_someproc"); U2: Rs2=Command2.Execute("select colA from sometable"); 用户请求 U1 执行的存储过程已获取会话互斥体。 如果执行该存储过程花费了很长时间,SQL Server 数据库引擎会认为存储过程正在等待用户的输入。 用户等待 U2 的结果集时,用户请求 ...