MySQL : Optimize performance of search on varchar column
48425
What is the best way to implement a substring search in SQL?
138361
What's faster, SELECT DISTINCT or GROUP BY in MySQL?
5208
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
100381
Improve SQL Server query performance on large tables
153847
How can i optimize MySQL's ORDER BY RAND() function?
39592
Are there disadvantages to using VARCHAR(MAX) in a table?
66324
Performance of string comparison vs int join in SQL
11223
quick selection of a random row from a large table in mysql
103080
slow query with fulltext and left join
15054
Does PostgreSQL optimize adding columns with non-NULL DEFAULTs?
60555
How to count occurrences of a column value efficiently in SQL?
7349
Search Inside Table Type of Records
44713
Maximum length for MySQL type text
16214
How to search a specific value in all tables (PostgreSQL)?
78798
In MySql, find strings with a given prefix
10522
Most efficient T-SQL way to pad a varchar on the left to a certain length?
143698
Why my sql query run faster than my stored procedure?