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How to solve privileges issues when restore PostgreSQL Database
...mments this should not be used in production:
root@server:/var/log/postgresql# sudo -u postgres psql
psql (8.4.4)
Type "help" for help.
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------------+-------------+-----------
<user-name> | Superus...
“A lambda expression with a statement body cannot be converted to an expression tree”
...
Is objects a Linq-To-SQL database context? In which case, you can only use simple expressions to the right of the => operator. The reason is, these expressions are not executed, but are converted to SQL to be executed against the database.
Try...
T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition
...ues.
The only way to do specifically what you're asking is to use dynamic SQL. This is, however, something I'd encourage you to stay away from. The solution above will almost certainly be sufficient for what you're after.
s...
MySQL 'create schema' and 'create database' - Is there any difference
...etween the create schema command and the create database command for MySQL.
6 Answers
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What is a good reason to use SQL views?
I am reading through the SQL Server 2008 bible and I am covering the views section. But the author really doesn't explain the purpose of views. What is a good use for views? Should I use them in my website and what are the benefits of them?
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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...
Is there a way to view past mysql queries with phpmyadmin?
I'm trying to track down a bug that's deleting rows in a mysql table.
13 Answers
13...
SQL Query to concatenate column values from multiple rows in Oracle
Would it be possible to construct SQL to concatenate column values from
multiple rows?
10 Answers
...
How can you represent inheritance in a database?
I'm thinking about how to represent a complex structure in a SQL Server database.
8 Answers
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Oracle SQL: Update a table with data from another table
...olumn = (select...)
never worked for me since set only expects 1 value - SQL Error: ORA-01427: single-row subquery returns more than one row.
here's the solution:
BEGIN
For i in (select id, name, desc from table1)
LOOP
Update table2 set name = i.name, desc = i.desc where id = i.id;
END LOOP;
EN...