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Fetch the row which has the Max value for a column
Table:
35 Answers
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What are the disadvantages of using persistent connection in PDO
...tion die when the script terminates abnormally.
If the dead script locked tables, those tables will remain locked until the connection dies or the next script that gets the connection unlocks the tables itself.
If the dead script was in the middle of a transaction, that can block a multitude of ta...
Escaping keyword-like column names in Postgres
If the column in Postgres' table has the name year , how should look INSERT query to set the value for that column?
3 An...
Spring @Transactional - isolation, propagation
...tted: Allows dirty reads.
Read Committed: Does not allow dirty reads.
Repeatable Read: If a row is read twice in the same transaction, the result will always be the same.
Serializable: Performs all transactions in a sequence.
The different levels have different performance characteristics in a mul...
How to find largest objects in a SQL Server database?
...the largest objects in a SQL Server database? First, by determining which tables (and related indices) are the largest and then determining which rows in a particular table are largest (we're storing binary data in BLOBs)?
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Cannot add or update a child row: a foreign key constraint fails
table 1
24 Answers
24
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What version of Visual Studio is Python on my computer compiled with?
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Where does this table come from?
– Glyph
Aug 20 '12 at 0:30
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Code Golf: Lasers
...&redo}die/x/?true:false,$/
The first line loads the input into %t, a table of the board where $t{99*i+j} holds the character at row i,column j. Then,
%d=split//,'>.^1<2v3' ; ($r)=grep{$d|=$d{$t{$_}}}%t
it searches the elements of %t for a character that matches > ^ < or v, and s...
Ordering by specific field value first
I have a table with 3 columns:
8 Answers
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Where do you store your salt strings?
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The point of rainbow tables is that they're created in advance and distributed en masse to save calculation time for others - it takes just as long to generate rainbow tables on the fly as it would to just crack the password+salt combination dire...