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What is the difference between “AS” and “IS” in an Oracle stored procedure?
...statement is different from a function that you declare and define in a PL/SQL block or package. ]
For more explanation, read this...
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Why is the default value of the string type null instead of an empty string?
...inks below.
https://softwareengineering.stackexchange.com/questions/32578/sql-empty-string-vs-null-value
NULL vs Empty when dealing with user input
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MySQL Update Inner Join tables query
I have no idea what the problem is. Using MySQL 5.0 I get a compile error when attempting to run the following MySQL update query:
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psycopg2: insert multiple rows with one query
...anoid, but concatenating the query with a + seems like it could open up to sql injection, I feel like @Clodoaldo Neto execute_values() solution is safer.
– Will Munn
Jan 17 '18 at 11:55
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How to run an EXE file in PowerShell with parameters with spaces and quotes
...eive the arguments, for example:
PS> echoargs -verb:sync -source:dbfullsql="Data Source=mysource;Integrated Security=false;User ID=sa;Pwd=sapass!;Database=mydb;" -dest:dbfullsql="Data Source=.\mydestsource;Integrated Security=false;User ID=sa;Pwd=sapass!;Database=mydb;",computername=10.10.10.10,...
Deleting rows with MySQL LEFT JOIN
...`status` = 'storno');
I am not sure if that kind of sub query works in MySQL, but try it. I am assuming you have an ID column in your deadline table.
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INSERT … ON DUPLICATE KEY (do nothing)
...ses resources for the second action.
Use INSERT IGNORE ...,
Negative : MySQL will not show any errors if something goes wrong, so you cannot handle the errors. Use it only if you don’t care about the query.
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Installing PDO driver on MySQL Linux server
...install the necessary PDO parts from apt using sudo apt-get install php5-mysql
There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO.
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Why is a boolean 1 byte and not 1 bit of size?
...hat bothers to pack several bools into a single byte, in my experience, is Sql Server.
Rails migrations: Undo default setting for a column
...re out of luck. You need
to DatabaseStatements#execute the
appropriate SQL statement yourself.
Examples
change_column_default(:suppliers, :qualification, 'new')
change_column_default(:accounts, :authorized, 1)
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