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Search and replace in Vim across all the project files
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I've decided to use ack and Perl to solve this problem in order to take advantage of the more powerful full Perl regular expressions rather than the GNU subset.
ack -l 'pattern' | xargs perl -pi -E 's/pattern/replacement/g'
Explanation
ack
ack is an awesome command line tool th...
Entity Framework 6 Code first Default value
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You can do it by manually edit code first migration:
public override void Up()
{
AddColumn("dbo.Events", "Active", c => c.Boolean(nullable: false, defaultValue: true));
}
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How to get size of mysql database?
... (MB)"
FROM information_schema.TABLES
WHERE table_schema = "database_name"
ORDER BY (data_length + index_length) DESC;
Change database_name to your Database
Command to Display all the Databases with its
size in MB.
SELECT table_schema AS "Database",
ROUND(SUM(data_length + index_length) /...
What is difference between Errors and Exceptions? [duplicate]
...ions. These are those exceptions that might not happen if everything is in order, but they do occur. Examples include ArrayIndexOutOfBoundException, ClassCastException, etc. Many applications will use try-catch or throws clause for RuntimeExceptions & their subclasses but from the language persp...
Create an instance of a class from a string
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@TaW - in order to use a class instance you will need to have some knowledge of what it is going to do - otherwise you won't be able to use it. The most common use case for this would be casting to some interface which give you a prede...
Local and global temporary tables in SQL Server
...wever it turned out that the parent stored procedure had to create them in order for them to be available to the children stored procedure calls. This was a sad thing, because we have a bunch of stored procedures that have to set up the tables the same way and call down into common sprocs. Will glo...
How to find all tables that have foreign keys that reference particular table.column and have values
...NCED_COLUMN_NAME = 'ci_id' ## Find Foreign Keys linked to this Primary Key
ORDER BY
ke.referenced_table_name;
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String literals: Where do they go?
I am interested in where string literals get allocated/stored.
8 Answers
8
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Multiline bash commands in makefile
...colon:
foo:
for i in `find`; \
do \
all="$$all $$i"; \
done; \
gcc $$all
But if you just want to take the whole list returned by the find invocation and pass it to gcc, you actually don't necessarily need a multiline command:
foo:
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How do you join on the same table, twice, in mysql?
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