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PerformanceDBA

Rating
1555.26 (6,556th) 		Reputation
22,587 (5,800th)
Page: 1 2 3 4 ... 7
Title Δ
Data modelling. How to model hundreds of dependent fields, 1:n or a... +1.12
Date Range for set of same data +0.95
count changes based on timestamp -0.46
How to sum new and last inserted entry with same ID and insert resu... +1.76
Relational algebra for joining multiple tables 0.00
How to add new relations and making weight dependent in MySQL datab... +1.38
postgresql: multiple multicolumn indexes with foreign key? 0.00
Save Followers count in a field or query each time if needed +0.45
Database Design - How much logic via foreign keys? -0.06
How to add a N:M relationship to my MySQL symptoms and diseases dat... +0.43
Rails 4: Complex Many to Many Relationships 0.00
What is the best way to represent/design groups and members in a da... +0.44
How to create default relationship for 2 MySQL tables with many-to-... +0.42
Sorting with many to many relationship -1.75
Best way to create nested array from tables: multiple queries/loops... +0.44
Improve database design for online exam +1.13
SQLite database design for music chart tracker +0.44
Database for 'who viewed this item also viewed..' +0.48
How to display item as 'in transit' instead of to specific... +0.95
SQL Server 2008: can 2 tables have the same composite primary key? 0.00
Joining pivot table vs. duplicating columns 0.00
time slot database design +1.99
Not defined database schema 0.00
How to reference groups of records in relational databases +0.46
Optimize database structure - Improve queries speed +2.33
How to handle change in Inventory Quantity on a backdate 0.00
Derived account balance vs stored account balance for a simple bank... +2.27
uncertainty in developing a database model 0.00
Data type to store non-numeric registration number in a table +0.45
Most efficient method determining if a list of values completely sa... +2.23
Is there a more efficient way to handle multi-valued attributes oth... -0.55
SQL: Creating a relation table with 2 different auto_increment 0.00
Database Design: Use mapping tables or include data directly in tab... +1.49
Database table naming; name_verb_name conventions for many-to-many... 0.00
What is the best practice in naming your "user" table? +0.99
avoid duplication of table +0.93
Problems with 2 relationships between 2 tables in the same column u... +0.48
Designing a database with periodic sensor data +1.66
displaying updation of data to multiple users which is inserted by... +0.34
what does EXEC master.. Do? -0.93
Combining multiple indexes in cases where WHERE has OR conditions -0.12
Tree Structure With History in SQL Server -0.08
What's the best practice in relationing 2 or more relationship tabl... -0.53
Is there an effcient hierarchy method for storing a large tree in a... -0.35
sports league database design +1.83
how to updated the keywords from database -0.04
Accounting database design question "accounts" and "... +0.46
Is this INSERT likely to cause any locking/concurrency issues? -2.08
How to Implement Referential Integrity in Subtypes +1.73
Triggers vs stored procedure vs inline SQL in DAL for updating tabl... +2.27