init lserp cs 5.0

新增SQL/20150124/生成类似ORACLE序列.sql

@@ -0,0 +1,34 @@
+create table P_SystemSequenceTab(
+
+      -- ID列为自增列
+      SeqID int identity(1,1) primary key,
+
+      -- Sequence值
+      SeqVal varchar(1)
+)
+go
+
+create procedure P_GetNewSeqVal
+as
+begin
+      -- 声明新Sequence值变量
+      declare @NewSeqValue int
+
+      -- 设置插入、删除操作后的条数显示取消
+      set NOCOUNT ON
+
+      -- 插入新值到表
+      insert into P_SystemSequenceTab (SeqVal) values ('a')   
+
+      -- 设置新Sequence值为插入到表的标识列内的最后一个标识值  
+      set @NewSeqValue = scope_identity()   
+
+      -- 删除SeqT_0101001表(不显示被锁行)
+      delete from P_SystemSequenceTab WITH (READPAST)
+
+		-- 返回新Sequence值
+		return @NewSeqValue
+
+end
+
+go