Questions tagged [sql-server]
Microsoft SQL Server is a relational database management system (RDBMS). Use this tag for all Microsoft SQL Server editions including Compact, Express, Azure, Fast-track, APS (formerly PDW) and Azure SQL DW. Do not use this tag for other types of DBMS (MySQL, PostgreSQL, Oracle, etc.). Do not use this tag for issues on software and mobile development, unless it is directly related to the database.
sql-server
335,679
questions
4285
votes
40
answers
5.4m
views
How do I UPDATE from a SELECT in SQL Server?
In SQL Server, it is possible to insert rows into a table with an INSERT.. SELECT statement:
INSERT INTO Table (col1, col2, col3)
SELECT col1, col2, col3
FROM other_table
WHERE sql = 'cool'
Is it ...
- 45.1k
3282
votes
45
answers
3.8m
views
How to add a column with a default value to an existing table in SQL Server?
How can I add a column with a default value to an existing table in SQL Server 2000 / SQL Server 2005?
- 33.9k
2426
votes
48
answers
3.3m
views
How to concatenate text from multiple rows into a single text string in SQL Server
Consider a database table holding names, with three rows:
Peter
Paul
Mary
Is there an easy way to turn this into a single string of Peter, Paul, Mary?
- 29.3k
2182
votes
33
answers
1.7m
views
How to check if a column exists in a SQL Server table
I need to add a specific column if it does not exist. I have something like the following, but it always returns false:
IF EXISTS(SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE ...
- 22.2k
2076
votes
12
answers
2.1m
views
LEFT JOIN vs. LEFT OUTER JOIN in SQL Server
What is the difference between LEFT JOIN and LEFT OUTER JOIN?
- 21.8k
2035
votes
4
answers
3.5m
views
Inserting multiple rows in a single SQL query? [duplicate]
I have multiple set of data to insert at once, say 4 rows. My table has three columns: Person, Id and Office.
INSERT INTO MyTable VALUES ("John", 123, "Lloyds Office");
INSERT INTO MyTable VALUES ("...
rits
1860
votes
41
answers
580k
views
Table Naming Dilemma: Singular vs. Plural Names [closed]
Academia has it that table names should be the singular of the entity that they store attributes of.
I dislike any T-SQL that requires square brackets around names, but I have renamed a Users table ...
1846
votes
35
answers
2.6m
views
Insert results of a stored procedure into a temporary table
How do I do a SELECT * INTO [temp table] FROM [stored procedure]? Not FROM [Table] and without defining [temp table]?
Select all data from BusinessLine into tmpBusLine works fine.
select *
into ...
- 21.7k
1795
votes
30
answers
4.7m
views
How do I perform an IF...THEN in an SQL SELECT?
How do I perform an IF...THEN in an SQL SELECT statement?
For example:
SELECT IF(Obsolete = 'N' OR InStock = 'Y' ? 1 : 0) AS Saleable, * FROM Product
- 29.8k
1775
votes
36
answers
4.1m
views
Find all tables containing column with specified name
Is it possible to query for table names which contain columns being
LIKE '%myName%'
- 29.5k
1754
votes
14
answers
2.2m
views
How can I delete using INNER JOIN with SQL Server?
I want to delete using INNER JOIN in SQL Server 2008.
But I get this error:
Msg 156, Level 15, State 1, Line 15
Incorrect syntax near the keyword 'INNER'.
My code:
DELETE
FROM WorkRecord2
INNER ...
- 18.1k
1720
votes
22
answers
1.6m
views
What is the difference between varchar and nvarchar?
Is it just that nvarchar supports multibyte characters? If that is the case, is there really any point, other than storage concerns, to using varchars?
- 43.7k
1707
votes
28
answers
2.2m
views
Get size of all tables in database
I have inherited a fairly large SQL Server database. It seems to take up more space than I would expect, given the data it contains.
Is there an easy way to determine how much space on disk each ...
- 19k
1644
votes
19
answers
2.2m
views
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
id (int)
udid (int)
assid (int)
Table: ud
id (int)
assid (int)
sale.assid contains the ...
- 20.8k
1443
votes
7
answers
1.0m
views
What is the difference between JOIN and INNER JOIN?
Both these joins will give me the same results:
SELECT * FROM table JOIN otherTable ON table.ID = otherTable.FK
vs
SELECT * FROM table INNER JOIN otherTable ON table.ID = otherTable.FK
Is there ...
- 163k