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Number of rows affected by an UPDATE in PL/SQL
I have a PL/SQL function (running on Oracle 10g) in which I update some rows. Is there a way to find out how many rows were affected by the UPDATE? When executing the query manually it tells me how many rows were affected, I want to get that number in PL/SQL.
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Why does NULL = NULL evaluate to false in SQL server
In SQL server if you have nullParam=NULL in a where clause, it always evaluates to false. This is counterintuitive and has caused me many errors. I do understand the IS NULL and IS NOT NULL keywords are the correct way to do it. But why does SQL server behave this way?
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Is LINQ to SQL Dead or Alive?
Just when I make friends with LINQ to SQL, it appears as though MS is pulling the rug out from under it.
16 Answers
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How do you import a large MS SQL .sql file?
I use RedGate SQL data compare and generated a .sql file, so I could run it on my local machine. But the problem is that the file is over 300mb, which means I can't do copy and paste because the clipboard won't be able to handle it, and when I try to open the file in SQL Server Management Studio I g...
How can I get the SQL of a PreparedStatement?
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Using prepared statements, there is no "SQL query" :
You have a statement, containing placeholders
it is sent to the DB server
and prepared there
which means the SQL statement is "analysed", parsed, some data-structure representing it is prepared in memory
And...
How to import a single table in to mysql database using command line
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Linux :
In command line
mysql -u username -p databasename < path/example.sql
put your table in example.sql
Import / Export for single table:
Export table schema
mysqldump -u username -p databasename tableName > path/example.sql
This wi...
How can prepared statements protect from SQL injection attacks?
How do prepared statements help us prevent SQL injection attacks?
9 Answers
9
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Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)
What are the real world pros and cons of executing a dynamic SQL command in a stored procedure in SQL Server using
5 Answer...
Doctrine - How to print out the real sql, not just the prepared statement?
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Doctrine is not sending a "real SQL query" to the database server : it is actually using prepared statements, which means :
Sending the statement, for it to be prepared (this is what is returned by $query->getSql())
And, then, sending the parameters (r...
Deep Learning（深度学习）学习笔记整理系列之（二） - 大数据 & AI - 清泛...
... T，尽可能相似，同时，S[k] 的数量尽可能少。用数学的语言来描述，就是：
Sum_k (a[k] * S[k]) --> T, 其中 a[k] 是在叠加碎片 S[k] 时的权重系数。
为解决这个问题，Bruno Olshausen和 David Field 发明了一个算法，稀疏编码...