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“Prevent saving changes that require the table to be re-created” negative effects
...he table is only dropped and re-created in cases where that's the only way SQL Server's Management Studio has been programmed to know how to do it.
There are certainly cases where it will do that when it doesn't need to, but there will also be cases where edits you make in Management Studio will no...
DISTINCT for only one column
...
If you are using SQL Server 2005 or above use this:
SELECT *
FROM (
SELECT ID,
Email,
ProductName,
ProductModel,
ROW_NUMBER...
How do I connect to a MySQL Database in Python?
How do I connect to a MySQL database using a python program?
23 Answers
23
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SQL Server loop - how do I loop through a set of records
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By using T-SQL and cursors like this :
DECLARE @MyCursor CURSOR;
DECLARE @MyField YourFieldDataType;
BEGIN
SET @MyCursor = CURSOR FOR
select top 1000 YourField from dbo.table
where StatusID = 7
OPEN @MyCurso...
Reusing a PreparedStatement multiple times
...mmon connection without any pool, can I recreate an instance for every dml/sql operation mantaining the power of prepared statements?
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How do I do a bulk insert in mySQL using node.js
How would one do a bulk insert into mySQL if using something like
https://github.com/felixge/node-mysql
12 Answers
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Why use multiple columns as primary keys (composite primary key)
...ebate" is not stupid. It's a very valid issue from developers that are not sql developers or sql DBA's and don't spend all their time in sql. Even in pure sql I'd rather have a meaningless auto-generated key as the primary key when joining than have to remember to pass n bits of data around being th...
Is storing a delimited list in a database column really that bad?
...nt table-scan. May have to resort to regular expressions, for example in MySQL:
idlist REGEXP '[[:<:]]2[[:>:]]'*
Hard to count elements in the list, or do other aggregate queries.
Hard to join the values to the lookup table they reference.
Hard to fetch the list in sorted order.
To solve thes...
How to ALTER multiple columns at once in SQL Server
...simple metadata change. You are welcome to join my lecture tomorrow about "SQL Internals - Physical Table Structure under the hood, and implementation on real case scenarios" to see it all in practical :-)
– Ronen Ariely
Mar 12 '19 at 17:19
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django syncdb and an updated model
...m using South for migrating models with a custom db backend (like django-mssql)
– Don
Apr 4 '11 at 7:32
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