--新增表字段
ALTER procedure [dbo].[sp_Web_TableFiled_Insert]
(
@TableName varchar(100),
@FieldName varchar(100),
@FieldExplain varchar(200),
@DataType varchar(100),
@ConnectTableName varchar(100),
@FieldLength int,
@NewsID int output
)
as
begin transaction mytran
declare @errorSum int
if not exists (SELECT * FROM syscolumns where id=object_id(@TableName) AND name=@FieldName)
begin
insert tb_TableField
(
TableName,
FieldName,
FieldExplain,
DataType,
ConnectTableName,
FieldLength,
UserSetSign
)
values
(
@TableName,
@FieldName,
@FieldExplain,
@DataType,
@ConnectTableName,
@FieldLength,
\'1\'
)
declare @sql varchar(8000)
--判断类型
if(@DataType=\'decimal\')
begin
set @sql = \'alter table \' + @TableName +\' add \' + @FieldName +\' \' + @DataType +\'(\' +Convert(varchar,@FieldLength)+\',2\'+\')\'
end
else if(@DataType=\'varchar\')
begin
set @sql = \'alter table \' + @TableName +\' add \' + @FieldName +\' \' + @DataType +\'(\' +Convert(varchar,@FieldLength)+\')\'
end
else
begin
set @sql = \'alter table \' + @TableName +\' add \' + @FieldName +\' \' + @DataType
end
exec(@sql)
EXECUTE sp_addextendedproperty N\'MS_Description\', @FieldExplain, N\'user\', N\'dbo\', N\'Table\', @TableName, N\'column\' , @FieldName;
set @errorSum=@errorSum+@@error
set @NewsID=0;
end
else
begin
set @NewsID=1;
end
if(@errorSum>0)
begin
rollback tran
end
else
begin
commit tran mytran
end
--修改表字段
ALTER procedure [dbo].[sp_API_TableFiled_Update]
(
@TableName varchar(100),
@FieldName varchar(100),
@FieldExplain varchar(200),
@DataType varchar(100),
@ConnectTableName varchar(100),
@FieldLength int,
@PaySystemField varchar (100),
@ID int,
@NewsID int output
)
as
begin transaction mytran
begin try
declare @fname varchar(100)
declare @filetype varchar(20)
declare @tsql varchar(1000)
---先取出表中以前的字段名称
select @fname=FieldName,@filetype=DataType from tb_TableField where ID=@ID
declare @pstid int
declare @sql varchar(8000)
--再根据字段名称取出tb_PaySystemToLocation中对应的ID
select @pstid=ID from tb_PaySystemToLocation where LocationField=@fname
if(@filetype!=@DataType)--如果字段类型修改了
begin
if(@DataType=\'decimal\')
begin
set @tsql = \'alter table \' + @TableName +\' add \' + @FieldName +\' \' + @DataType +\'(\' +Convert(varchar,@FieldLength)+\',2\'+\')\'
end
else if(@DataType=\'varchar\')
begin
set @tsql = \'alter table \' + @TableName +\' add \' + @FieldName +\' \' + @DataType +\'(\' +Convert(varchar,@FieldLength)+\')\'
end
else
begin
set @tsql = \'alter table \' + @TableName +\' add \' + @FieldName +\' \' + @DataType
end
declare @delsql varchar(1000)
set @delsql=\'ALTER TABLE \' +@tablename+ \' DROP COLUMN \'+ @fname
exec(@delsql)--先删除旧字段 再添加新字段
exec(@tsql)
EXECUTE sp_addextendedproperty N\'MS_Description\', @FieldExplain, N\'user\', N\'dbo\', N\'Table\', @TableName, N\'column\' , @FieldName;
end
if(@fname!=@FieldName) begin
set @sql = \'sp_rename \'+CHAR(39)+@TableName+\'.[\'+@fname+\']\'+CHAR(39)+\',\' +char(39)+@FieldName+char(39)+\',\' + char(39)+\'COLUMN\' +CHAR(39)
exec(@sql)
end
update tb_TableField
set TableName=@TableName,
FieldName=@FieldName,
FieldExplain=@FieldExplain,
DataType=@DataType,
ConnectTableName=@ConnectTableName,
FieldLength=@FieldLength
where ID=@ID
--修改字段说明
EXECUTE sp_updateextendedproperty N\'MS_Description\', @FieldExplain, N\'user\', N\'dbo\', N\'Table\', @TableName, N\'column\' , @FieldName;
update tb_PaySystemToLocation
set PaySystemField=@PaySystemField,LocationField=@FieldName,TableName=@TableName
where ID=@pstid
set @NewsID=0
commit tran mytran
end try
begin catch
insert into tb_error (Message)values(ERROR_MESSAGE())
set @NewsID=1
if(@@TRANCOUNT >0)
rollback transaction mytran
end catch
-删除表字段
ALTER procedure [dbo].[sp_Web_TableFiled_Delete]
(
@ID int,
@NewsID int output
)
as
begin transaction mytran
declare @fname varchar(100)
declare @tablename varchar(100)
declare @pstid int
declare @sql varchar(8000)
declare @errorSum int
--取出字段名,表名
select @fname=FieldName,@tablename=TableName from tb_TableField where ID=@ID
--取出tb_PaySystemToLocation的ID
select @pstid=ID from tb_PaySystemToLocation where LocationField=@fname
delete from tb_TableField where ID=@ID
set @sql=\'ALTER TABLE \' +@tablename+ \' DROP COLUMN \'+ @fname
exec(@sql)
set @errorSum=@errorSum+@@error
set @NewsID=0;
if(@errorSum>0)
begin
rollback tran
end
else
begin
commit tran mytran
end