1.Batch update top 10

2.Backup table

3.Add/Alter column and PK

4.Create/Replace Index

5.Dynamic Create/Replace sequence

6.Create/Replace Stored Procedure

7.Create/Replace function

1.Batch update top 10
update top(10)  tablename set id=1 where id is null

2.Backup table
select * into new_table from old_table

 
3.Add/Alter column and PK
ALTER TABLE table_name DROP CONSTRAINT pk_name
ALTER TABLE table_name ALTER COLUMN name_no char(2) not null
ALTER TABLE table_name ADD country char(10) not null
ALTER TABLE table_name ADD CONSTRAINT pk_name PRIMARY KEY CLUSTERED (id, name)

4.Create/Replace Index
IF EXISTS (
       
 
SELECT * FROM sys.objects  so JOIN sys.indexes si
       ON so.object_id = si.object_id
       JOIN sys.schemas sc
       ON so.schema_id = sc.schema_id
       WHERE so.name = N'table_name'  AND sc.name = N'schema'  AND si.name = N'index_name' AND so.type in (N'U'))
   DROP INDEX [index_name] ON [schema
 
].[table_name] 
GO
CREATE NONCLUSTERED INDEX [index_name] ON [schema].[table_name]
(
   [id] ASC,
   [name] ASC
)
WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY] 
GO

5.Dynamic Create/Replace sequence
IF EXISTS(SELECT * FROM sys.sequences WHERE name = N'sequence_name')
  DROP SEQUENCE schema.sequence_name;
DECLARE @start_value varchar(20),@create_seq_sql nvarchar(2000)
SELECT @start_value = max(id) FROM shema.table_name WHERE id IS NOT NULL
IF @start_value IS NULL
   SET @start_value=0
SELECT @create_seq_sql = '
CREATE SEQUENCE schema.sequence_name  
  AS bigint
    START WITH  ' + @start_value + ' 
    INCREMENT BY 1'
EXEC sp_executesql @create_seq_sql
GO

6.Create/Replace Stored Procedure
IF EXISTS (select * from dbo.sysobjects where id = object_id(N'[schema].[sp_name]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
    DROP PROCEDURE [schema].[sp_name]
GO
CREATE PROCEDURE [schema].[sp_name]
  @param_1 numeric(20, 0),
  @param_2 varchar(10)
AS 
  BEGIN
    -- business logic
  END
GO

7.Create/Replace function
IF EXISTS(SELECT * FROM sys.sysobjects WHERE id = object_id(N'schema.function_name') and xtype='FN')
    DROP FUNCTION [schema].[function_name]
GO
CREATE function [schema].[function_name](
    @param NVARCHAR(1000)
) 
returns NVARCHAR(1000) 
as 
begin
    -- bisiness logic
    return ''
end
go