2024-07-03
113 reads
T-SQL
2024-06-28
347 reads
2024-06-26
375 reads
Effective Strategies for Storing and Parsing XML in SQL Server
XML is a common storage format for data, metadata, parameters, or other semi-structured data. Because of this, it often finds its way into SQL Server databases and needs to be managed alongside other data types.
2024-06-24
Query Exercise: Beat ChatGPT at Finding Good Question Times
What are the best days of the week and times of the day to post a question at StackOverflow.com?
2024-06-21
The CHECK() Constraint
One of the many ways a relational table differs from the file structures used by pre-relational storage systems is that the tables, rows and columns can have constraints on them. This allows you to reduce the types of bad data that can be loaded into your tables.
2024-06-17
2024-06-14
317 reads
2024-06-12
446 reads
Snake draft sorting in SQL Server, part 4
In the previous posts in this series (part 1, part 2, part 3), I described how I have optimized a long-running set of routines by processing databases, tables, and even subsets of tables in parallel. This leads to many separate jobs that all kick off at roughly the same time
2024-06-12
2024-06-10
470 reads
Blogs
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Forums
Table Partitioning SQL server 2022
Hi All, I am currently testing the Table Partitioning to implement in SQL server...
STRING_AGG's behavior
Comments posted to this topic are about the item STRING_AGG's behavior
The Role of Databases in the Era of AI
Comments posted to this topic are about the item The Role of Databases in...
Question of the Day
STRING_AGG's behavior
Executing the following script (Sql Server 2022), you get the table t0 with 10 rows:
CREATE TABLE t0
( id INT PRIMARY KEY
, field1 VARCHAR(1000)
, field2 VARCHAR(MAX));
INSERT INTO t0
SELECT
gs.value
, REPLICATE ('X', 1000)
, REPLICATE ('Y', 1000)
FROM generate_series(1, 10, 1) gs;
GOWhat happens if you execute the following statements?
select STRING_AGG(field1, ';') within group (order by id) from t0;
select STRING_AGG(field2, ';') within group (order by id) from t0;