Integration Services (SSIS)

External Article

SQL Server Integration Services (SSIS) - Design Best Practices

  • Article

In the previous tips (SQL Server Integration Services (SSIS) - Best Practices - Part 1, Part 2 and Part 3) of this series I briefly talked about SSIS and few of the best practices to consider while designing SSIS packages. Continuing on this path I am going to discuss some more best practices of SSIS package design, how you can use lookup transformations and what considerations you need to take, the impact of implicit type cast in SSIS, changes in SSIS 2008 internal system tables and stored procedures and finally some general guidelines.

2009-12-14

5,747 reads

External Article

SQL Server Integration Services (SSIS) - Troubleshooting Best Practices

  • Article

In the previous tips (SQL Server Integration Services (SSIS) - Best Practices - Part 1 and Part 2) of this series I briefly talked about SSIS and a few of the best practices to consider when designing SSIS packages. Continuing on the same rhythm I am going to discuss some more best practices for SSIS package design, how you can design high performing packages with parallelism, troubleshooting performance problems etc.

2009-11-30

3,785 reads

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Question of the Day

The string_agg function

We create the following table and then insert some records in it: 

create table t1 (
   id int primary key,
   category char(1) not null,
   product varchar(50)
);

insert into t1 values
(1, 'A', 'Product 1'),
(2, 'A', 'Product 2'),
(3, 'A', 'Product 3'),
(4, 'B', 'Product 4'),
(5, 'B', 'Product 5');
What happens if we execute the following query in both Sql Server and PostgreSQL? 
select id, 
category, 
string_agg(product, ';')
                 over (partition by category order by id
                 rows between unbounded preceding and unbounded following) as stragg
from t1;

See possible answers