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New posts in sql

Query to find the FIRST AND SECOND largest value from a group

sql sql-server-2008

How do I SUM DISTINCT Rows?

sql sum row distinct rows

In sqlite How to add column in table if same column is not exists in table

sql database sqlite

Should grandparent foreign keys be stored in grandchild table?

sql entity-framework database-design orm foreign-keys

Is it possible to compare *tuples* in the `WHERE` clause of a SQL query?

sql subquery row-value-expression

xQuery LIKE-operator?

sql xml xpath xquery

SQL Query where a field value does not contain empty spaces

mysql sql

Default value for empty integer fields when importing CSV data in MySQL

mysql sql csv

Choosing data type for MySQL?

mysql sql database performance

Why most hibernate applications are using sequence for id generation?

java sql database hibernate jpa

MySQL: Fields length. Does it really matter?

mysql sql database database-abstraction

How can I delete expired data from a huge table without having the log file grow out of control?

sql sql-server-2005 sql-delete bulk transaction-log

Why deadlock occurs?

sql sql-server-2008 transactions deadlock isolation-level

Dynamically select the columns to be used in a SELECT statement

sql oracle oracle10g subquery

Need to Improve Performance of SQL Query using Aggregate Functions

sql sql-server performance aggregate-functions

Is it ok to leave a sql connection open?

c# sql connection

How to avoid many database round trips and a lot of irrelevant data?

sql optimization language-agnostic data-retrieval

Poor performance of INFORMATION_SCHEMA.key_column_usage in MySQL

mysql sql performance information-schema

How do I count multiple columns in SQL Server?

c# sql

How can I substitute a left join in SQL

sql left-join
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