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BACKUP LOG cannot be performed because there is no current database backup
I tried to restore a database but this message showed. How do I restore this database?
14 Answers
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Abort makefile if variable not set
...empty values,
# die with an error otherwise.
#
# Params:
# 1. Variable name(s) to test.
# 2. (optional) Error message to print.
check_defined = \
$(strip $(foreach 1,$1, \
$(call __check_defined,$1,$(strip $(value 2)))))
__check_defined = \
$(if $(value $1),, \
$(error Unde...
How to convert a factor to integer\numeric without loss of information?
When I convert a factor to a numeric or integer, I get the underlying level codes, not the values as numbers.
10 Answers
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Can you help me understand Moq Callback?
... a doc bug...
EDIT: In response to your clarification...
For each mocked method Setup you perform, you get to indicate things like:
constraints on inputs
the value for / way in which the return value (if there is one) is to be derived
The .Callback mechanism says "I can't describe it right now...
Stop “developer tools access needs to take control of another process for debugging to continue” ale
...3, and when I try to debug my iOS project in the simulator for the first time after logging in, I'm prompted with the following two alerts:
...
Format date and time in a Windows batch script
...Windows (Windows XP) batch script I need to format the current date and time for later use in files names, etc.
33 Answers...
How can I check if an element exists in the visible DOM?
How do you test an element for existence without the use of the getElementById method?
25 Answers
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Stop Excel from automatically converting certain text values to dates
...
This doesn't work for me in Excel 2010 if the text is too long :(
– steve
Mar 31 '14 at 15:09
7
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the source file is different from when the module was built
This is driving me crazy.
27 Answers
27
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What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
...load it successfully and set the column-String to null.
Now you change something and call
SubmitChanges().
LINQ will generate a SQL query
containing "WHERE [title] IS NULL", to make sure the title has not been changed by someone else.
LINQ looks up the properties of
[title] in the mapping.
LINQ wi...