动态生成表的测试数据

经常要对一个空表添加数据，下面是自动添加测试数据的例子。以sqlserver 为例

1、要生成数据的表

 

 

create table T_INDUSTRY_FINANCE_INSTANCE (
   ID_                  varchar(32)          not null,
   ARTIFICIAL_PERSON_CODE_ varchar(200)         null,
   COMPANY_NAME_        varchar(200)         null,
   STORAGE_BEGINNING_YEAR_ double precision     null,
   ASSETS_LIABILITIES_ENDYEAR_ double precision     null,
   INCREASE_DECREASE_   double precision     null,
   PAY_WELFARE_ADDEDVALUETAX_ double precision     null,
   GROSS_INVEST_        double precision     null,
   CASH_FLOW_           double precision     null,
   OUGHT_TAX_APPEND_    double precision     null,
   REALITY_TAX_APPEND_  double precision     null,
   AVERAGE_WORKER_YEAR_ double precision     null,
   YEAR_                varchar(20)          null,
   SEASON_              varchar(20)          null,
   MONTH_               varchar(20)          null,
   constraint PK_T_INDUSTRY_FINANCE_INSTANCE primary key (ID_)
)
go

 

 

2、存储过程生成里面的varchar 类型的数据 (double 型的太多，第三步用游标来生成，这里省略了CREATE PROCEDURE name as..
)    

  declare @sqltext varchar(8000),@i int,@acount int
set  @acount=1000000
SELECT   @i   =   0
  WHILE(@i<@acount)
begin
 set @sqltext = convert(varchar(12),@i)+''','''+convert(varchar(12),@i)+''','''+'t'+convert(varchar(12),@i)+''','''+convert(varchar(12),ceiling(10*rand()))+''','''+convert(varchar(12),(@i%4+1))+''','''+convert(varchar(12),(@i%12+1))
 if @sqltext<>''
begin
     set @sqltext='insert into t_industry_finance_instance(ID_,ARTIFICIAL_PERSON_CODE_,COMPANY_NAME_,YEAR_,SEASON_,MONTH_) values('''+@sqltext+''')';
print @sqltext
exec(@sqltext)
     set @sqltext=''
end
    select @i=@i+1
end

 

 

3、用游标生成里面的double类型的数据 

Declare @Id varchar(20)
Declare @Name varchar(20) --@Name没有用这里
Declare Cur Cursor For
select id_,COMPANY_NAME_ from t_industry_finance_instance
Open Cur
Fetch next From Cur Into @Id,@Name
While @@fetch_status=0
Begin
if(@Id%4=0)
update  t_industry_finance_instance  set STORAGE_BEGINNING_YEAR_=10000*rand(),ASSETS_LIABILITIES_ENDYEAR_=1000*rand(),INCREASE_DECREASE_=1050*rand(),PAY_WELFARE_ADDEDVALUETAX_=2050*rand(),GROSS_INVEST_=1750*rand(),CASH_FLOW_=3050*rand(),OUGHT_TAX_APPEND_=5050*rand(),REALITY_TAX_APPEND_=4550*rand(), AVERAGE_WORKER_YEAR_=6050*rand(),YEAR_='2006' where id_=@Id
else if(@Id%4=1)
update  t_industry_finance_instance  set STORAGE_BEGINNING_YEAR_=10000*rand(),ASSETS_LIABILITIES_ENDYEAR_=1000*rand(),INCREASE_DECREASE_=1050*rand(),PAY_WELFARE_ADDEDVALUETAX_=2050*rand(),GROSS_INVEST_=1750*rand(),CASH_FLOW_=3050*rand(),OUGHT_TAX_APPEND_=5050*rand(),REALITY_TAX_APPEND_=4550*rand(), AVERAGE_WORKER_YEAR_=6050*rand(),YEAR_='2007' where id_=@Id
else if(@Id%4=2)
update  t_industry_finance_instance  set STORAGE_BEGINNING_YEAR_=10000*rand(),ASSETS_LIABILITIES_ENDYEAR_=1000*rand(),INCREASE_DECREASE_=1050*rand(),PAY_WELFARE_ADDEDVALUETAX_=2050*rand(),GROSS_INVEST_=1750*rand(),CASH_FLOW_=3050*rand(),OUGHT_TAX_APPEND_=5050*rand(),REALITY_TAX_APPEND_=4550*rand(), AVERAGE_WORKER_YEAR_=6050*rand(),YEAR_='2008' where id_=@Id
else
update  t_industry_finance_instance  set STORAGE_BEGINNING_YEAR_=10000*rand(),ASSETS_LIABILITIES_ENDYEAR_=1000*rand(),INCREASE_DECREASE_=1050*rand(),PAY_WELFARE_ADDEDVALUETAX_=2050*rand(),GROSS_INVEST_=1750*rand(),CASH_FLOW_=3050*rand(),OUGHT_TAX_APPEND_=5050*rand(),REALITY_TAX_APPEND_=4550*rand(), AVERAGE_WORKER_YEAR_=6050*rand(),YEAR_='2009' where id_=@Id
Fetch Next From Cur Into @Id,@Name
End
Close Cur
Deallocate Cur