I have a database (Sql Server 2005) where there are dozens of tables, each of which has a number of columns (on average 10-20) with datatype set to nvarchar(max). This is absolutely killing …
Retrieving the last record in each group – MySQL
There is a table messages that contains data as shown below: Id Name Other_Columns ————————- 1 A A_data_1 2 A A_data_2 3 A A_data_3 4 B …
SQL as Control Source for Access Form field
Is there any way populate an Access Form’s text feild’s value using SQL? I have read that it is not possible to simply enter SQL as the Control Source. Is this true? thanks for any halp 🙂 –edit– I need to perform this query; Answer Pretty sure that is true SQL, but you could use the fu…
Should SQL ranking functionality be considered as “use with caution”
This question originates from a discussion on whether to use SQL ranking functionality or not in a particular case. Any common RDBMS includes some ranking functionality, i.e. its query language has elements like TOP n … ORDER BY key, ROW_NUMBER() OVER (ORDER BY key), or ORDER BY key LIMIT n (overview). …
How can I use a PostgreSQL triggers to store changes (SQL statements and row changes)
Using PostgreSQL triggers, is it possible to record the changes that have happened to a table due to INSERT or UPDATE SQL statements and log them to a file for later execution. This is only to be used temporally so just something quick and dirty would do. Answer example of an audit trigger from https://www.po…
How can I do an UPDATE statement with JOIN in SQL Server?
I need to update this table in SQL Server with data from its ‘parent’ table, see below: Table: sale Table: ud sale.assid contains the correct value to update ud.assid. What query will do this? I’m thinking of a join but I’m not sure if it’s possible. Answer Syntax strictly depend…
Export all MS Access SQL queries to text files
I have to document an MS Access database with many many macros queries, etc. I wish to use code to extract each SQL query to a file which is named the same as the query, eg if a query is named q_warehouse_issues then i wish to extract the SQL to a file named q_warehouse_issues.sql I DO NOT WISH TO EXPORT
SP taking 15 minutes, but the same query when executed returns results in 1-2 minutes
So basically I have this relatively long stored procedure. The basic execution flow is that it SELECTS INTO some data into temp tables declared with he # sign and then runs a cursor through these tables a generate a ‘running total’ into a third temp table which is created using CREATE. Then this r…
How should I pass a table name into a stored proc?
I just ran into a strange thing…there is some code on our site that is taking a giant SQL statement, modifying it in code by doing some search and replace based on some user values, and then passing …
Netezza SQL syntax to convert numeric YYYYMMDD format into date
We have a Netezza table that contains dates stored in a numeric YYYYMMDD format (eg 20090731). What is the best Netezza syntax to use to convert this into date format? eg SELECT somefunction(…