a1ex07

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98 Answers

newest activity votes
7
How can I improve this DB query? it takes too much time
6
File name as primary key?
5
SQL Server OPENQUERY vs Regular Query against AS400
5
Swap Columns on some rows?
5
What to use, CASCADE DELETE rule or ON DELETE trigger for one to many constraint?
4
Database structure for tags?
4
SQL Server pivot query on Oracle source
4
SQL Server Express vs. Oracle Express Edition vs DB2 Express-C
4
unique constraint on a set
4
Similar queries taking different times to complete
4
How can I select using the same fields from an undetermined number of tables using MySQL?
4
Oracle: UTL_RAW.BIT_OR(2,1) gives me 2 instead of 3. Why?
4
Tables with hierarchy: create a constraint to prevent circularity through foreign keys
3
A database in MySQL is a schema in Oracle : I do not understand this statement
3
Only one NULL for one part of primary key
3
Combining two similar SQL queries
3
How to GROUP_CONCAT between given rows?
3
Foreign key of multiple tables
3
Should we add extra 5 columns or build a separate table?
3
Can I have one table be an “alias”, or “symlink”, to another?
3
Mysql int vs varchar as primary key (InnoDB Storage Engine?
3
How do I preserve the leading zeros when I insert a number into this table?
3
How do I prevent updates on an entire table (but allow inserts) in Mysql 5.5?
3
Window functions cause awful execution plan when called from a view with external parametrized 'where' clause
3
How to keep long multiple of questions and answers in database?
2
Is it possible to validate DML statements?
2
Foreign Key to Multicolumn Primary Key?
2
ORDER BY clause is allowed over column that is not in SELECT list?
2
What is the correct result for this query?
2
MySQL SELECT query: i want show duplicated entries
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