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What is the purpose of Order By 1 in SQL select statement?
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This only has the sql tag. In Standard SQL only column correlation names are allowed in the OREDER BY clause because, in theory, the table correlation names are out of scope i.e. should be ORDER BY PAYMENT_DATE;. Of course, not all SQL impleme...
NULL values inside NOT IN clause
... 'X', 'Y' )" actually is an alias for A <> 'X' AND A <> 'Y' in SQL. (I see that you discovered this yourself in stackoverflow.com/questions/3924694/…, but wanted to make sure your objection was addressed in this question.)
– Ryan Olson
Dec 27 '10...
How can I confirm a database is Oracle & what version it is using SQL?
...cle, and if possible, what version of Oracle they are running by sending a SQL statement to the datasource.
10 Answers
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SQL update fields of one table from fields of another one
...ax ... without specifying the column names?
General solution with dynamic SQL
You don't need to know any column names except for some unique column(s) to join on (id in the example). Works reliably for any possible corner case I can think of.
This is specific to PostgreSQL. I am building dynamic co...
Converting Select results into Insert script - SQL Server [closed]
I have SQL Server 2008 , SQL Server Management Studio.
18 Answers
18
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Turn off constraints temporarily (MS SQL)
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You can disable FK and CHECK constraints only in SQL 2005+. See ALTER TABLE
ALTER TABLE foo NOCHECK CONSTRAINT ALL
or
ALTER TABLE foo NOCHECK CONSTRAINT CK_foo_column
Primary keys and unique constraints can not be disabled, but this should be OK if I've understood you...
Find index of last occurrence of a sub-string using T-SQL
...tforward way of finding the index of the last occurrence of a string using SQL? I am using SQL Server 2000 right now. I basically need the functionality that the .NET System.String.LastIndexOf method provides. A little googling revealed this - Function To Retrieve Last Index - but that does n...
SQL- Ignore case while searching for a string
...eOrderShipped
PriceOrderShippedInbound
PriceOrderShippedOutbound
In SQL I need to write a query which searches for a string in a table. While searching for a string it should ignore case. For the below mentioned SQL query
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SQL - using alias in Group By
Just curious about SQL syntax. So if I have
10 Answers
10
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Export specific rows from a PostgreSQL table as INSERT SQL script
...mp --table=export_table --data-only --column-inserts my_database > data.sql
--column-inserts will dump as insert commands with column names.
--data-only do not dump schema.
As commented below, creating a view in instead of a table will obviate the table creation whenever a new export is neces...