sql_notes.md

SQL Notes

Adding Row numbers

Syntax

ROW_NUMBER ( )   
    OVER ( [ PARTITION BY value_expression , ... [ n ] ] order_by_clause )

Example

SELECT 
  ROW_NUMBER() OVER(ORDER BY name ASC) AS Row#,
  name, recovery_model_desc
FROM sys.databases 
WHERE database_id < 5;

Linked Servers

Example

EXEC master.dbo.sp_addlinkedserver 
                            @server = N'SERVERNAME', 
                            @srvproduct=N'', 
                            @provider=N'SQLNCLI', 
                            @datasrc=N'SERVERNAME', 
                            @catalog=N'master',
                            @provstr='Integrated Security=SSPI;'
GO
EXEC sp_addlinkedsrvlogin 'SERVERNAME', true  
go

Table Variables

Declare @TableName Table (
  field1 char(12),
  field2 datetime,
  field3 varchar(32)
)

Create guid as varchar(32)

select replace(newid(), '-', '')

Insert Into new Table

SELECT *
INTO newtable
FROM oldtable
WHERE condition;

scripts to return enable/disable scripts for all triggers in a DB

--script to create disable trigger statments for all active triggers in the current DB
SELECT  
     'DISABLE TRIGGER ' + TRIG.name + ' ON SYSDBA.' + TAB.name + ';'
FROM [sys].[triggers] as TRIG 
inner join sys.tables as TAB 
on TRIG.parent_id = TAB.object_id 
where trig.is_disabled = 0
order by TAB.name, TRIG.name

--script to create enable trigger statments for all inactive triggers in the current DB
SELECT  
     'ENABLE TRIGGER ' + TRIG.name + ' ON SYSDBA.' + TAB.name + ';'
FROM [sys].[triggers] as TRIG 
inner join sys.tables as TAB 
on TRIG.parent_id = TAB.object_id 
where trig.is_disabled = 1
order by TAB.name, TRIG.name

home