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Delete duplicate records in SQL Server?
...ersion with the lowest ID in the table.
Edit
Re McGyver's comment - as of SQL 2012
MIN can be used with numeric, char, varchar, uniqueidentifier, or datetime columns, but not with bit columns
For 2008 R2 and earlier,
MIN can be used with numeric, char, varchar, or datetime columns, but ...
Remove DEFINER clause from MySQL Dumps
I have a MySQL dump of one of my databases. In it, there are DEFINER clauses which look like,
24 Answers
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Entity Framework. Delete all rows in table
..., this is how you currently do it in EF5 and EF6:
context.Database.ExecuteSqlCommand("TRUNCATE TABLE [TableName]");
Assuming context is a System.Data.Entity.DbContext
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Oracle SQL Developer multiple table views
In Oracle SQL Developer , one can list the data in a table using the Data tab when viewing a table. there where can add, delete, edit or just viewing records of table currently viewd
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Error 1046 No database Selected, how to resolve?
Error
SQL query:
16 Answers
16
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SQL - Rounding off to 2 decimal places
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@Ram The question didn't specify the sql server engine - which is why i highlighted the round v cast on its own. The convert to numeric doesn't do rounding in all engines so if the calculated number was 10.809 you would get 10.80 rather than the 10.81 the questi...
How do I return rows with a specific value first?
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On SQL Server, Oracle, DB2, and many other database systems, this is what you can use:
ORDER BY CASE WHEN city = 'New York' THEN 1 ELSE 2 END, city
sh...
栈和队列的面试题Java实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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通俗一点讲：已知一组数据1、2、3、4、5依次进栈，那么它的出栈方式有很多种，请判断一下给出的出栈方式是否是正确的？
例如：
数据：
1、2、3、4、5
出栈1：
5、4、3、2、1（正确）
出栈2：
4、5、3、2、1...
PostgreSQL: How to pass parameters from command line?
...ses ? placeholders. I wanted to test this same query directly from the psql command line (outside the script). I want to avoid going in and replacing all the ? with actual values, instead I'd like to pass the arguments after the query.
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How to get min/max of two integers in Postgres/SQL?
How do I find the maximum (or minimum) of two integers in Postgres/SQL? One of the integers is not a column value.
2 Answer...