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Advantages of Binary Search Trees over Hash Tables
What are the advantages of binary search trees over hash tables?
18 Answers
18
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Best way to test if a row exists in a MySQL table
I'm trying to find out if a row exists in a table. Using MySQL, is it better to do a query like this:
12 Answers
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How to set tbody height with overflow scroll
...u want tbody to show a scroll , turn it into a block.
To keep behavior of table , turn tr into table.
to spray evenly the cells , use table-layout:fixed;
DEMO
CSS for your HTML test :
table ,tr td{
border:1px solid red
}
tbody {
display:block;
height:50px;
overflow:auto;
}
t...
Turn off constraints temporarily (MS SQL)
I'm looking for a way to temporarily turn off all DB's constraints (eg table relationships).
5 Answers
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MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
What is main difference between INSERT INTO table VALUES .. and INSERT INTO table SET ?
3 Answers
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How do I iterate through table rows and cells in JavaScript?
If I have an HTML table...say
9 Answers
9
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Delete duplicate rows from small table
I have a table in a PostgreSQL 8.3.8 database, which has no keys/constraints on it, and has multiple rows with exactly the same values.
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How to Store Historical Data
...y to store historical data. Currently, for some systems, I use a separate table to store historical data, and I keep an original table for the current, active record. So, let's say I have table FOO. Under my system, all active records will go in FOO, and all historical records will go in FOO_Hist...
How do I dump the data of some SQLite3 tables?
How do I dump the data, and only the data, not the schema, of some SQLite3 tables of a database (not all the tables)?
The dump should be in SQL format, as it should be easily re-entered into the database later and should be done from the command line. Something like
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Altering column size in SQL Server
How to change the column size of the salary column in the employee table from numeric(18,0) to numeric(22,5)
6 Answe...