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Best way to work with transactions in MS SQL Server Management Studio
Let's say I have an SQL statement that's syntactically and semantically correct so it executes.
2 Answers
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Difference between JOIN and INNER JOIN
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Is this true for all data bases (e.g. SQL, postgres?) Does anyone know a link to the documentation explaining this?
– Chogg
Oct 25 '17 at 17:32
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What exactly is Arel in Rails 3.0?
...ement for ActiveRecord
No, it isn't. It's a replacement for hand-crafting SQL queries in strings. It is a common query layer that underlies ActiveRecord, but it can also be used as an underpinning for DataMapper, for example.
If it is a replacement for anything, it's a replacement for Ambition. Or,...
1052: Column 'id' in field list is ambiguous
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SQL supports qualifying a column by prefixing the reference with either the full table name:
SELECT tbl_names.id, tbl_section.id, name, section
FROM tbl_names
JOIN tbl_section ON tbl_section.id = tbl_names.id
...or a ta...
SQL Server Management Studio won't let me add an index to a table
...ble just in case, and refreshed and restarted SSMS, but no luck. I'm using SQL Server 2012 Business Intelligence SP1 CTP.
5...
How to use NULL or empty string in SQL
...ow to use NULL and an empty string at the same time in a WHERE clause in SQL Server. I need to find records that have either null values or an empty string. Thanks.
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Lock Escalation - What's happening here?
While altering a table (removing a column) in SQL Server 2008, I clicked the Generate Change Script button and I noticed that the change script it generated drops the column, says "go" and then runs an additional ALTER TABLE statement that appears to set the lock escalation for the table to "TABLE"....
How can I solve a connection pool problem between ASP.NET and SQL Server?
...he code between .Open and Close throws an exception:
var connection = new SqlConnection(connectionString);
connection.Open();
// some code
connection.Close();
The correct way would be this:
var connection = new SqlConnection(ConnectionString);
try
{
connection.Open();
s...
How to rename a table in SQL Server?
The SQL query that I have used is :
8 Answers
8
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sql query to return differences between two tables
I am trying to compare two tables, SQL Server, to verify some data. I want to return all the rows from both tables where data is either in one or the other. In essence, I want to show all the discrepancies. I need to check three pieces of data in doing so, FirstName, LastName and Product.
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