Come to this company has been a week, spent the beginning of the boring days ready to formally do something, these days contacted the file database InterBase, try to connect their open source version Firebird on Ubuntu, because the company uses
Alter table studentAdd znpf20 decimal (3, 1 ),Add zjpf20 decimal (3, 1 ),Add taidu20 decimal (3, 1)
[Share] basic data types of Firebird
Because of the typographical relationship, the power is [], for example, 10 [5], representing the power 5 of 1
Most of the time, the number after calculation in the stored procedure or trigger needs to be written into the record, but the result number of this operation is often an infinite decimal number, so we need to make a rounding in advance, if the
1. dialects 1 and 3 store different fixed points, and the floating point Double Precision type is also different.2. the maximum value of the generator (serial number) in dialects 1 and 3 modes is different. One is 32-bit, and the other is 64-bit.3.
Php pdo operation database and phppdo Database
The POD extension is added to PHP5, which provides the PHP built-in PDO class to access the database. Different databases use the same method name to solve the problem of inconsistent database
PHP PDO operations database, PHPPDO database
Pod extension is added in PHP5, which provides PHP built-in class PDO to access the database, different databases use the same method name, to solve the problem of non-uniform database
It seems that the front-end circle has been widely circulated a misunderstanding: the front-end does not use algorithmic knowledge. For a long time, we may have been influenced by this claim. Until the previous encounter with a product demand,
The POD extension of the phppdo operation database is added to PHP5, which provides the PHP built-in PDO class to access the database. different databases use the same method name to solve the problem of inconsistent database connections.
PDO
Phppdo operation database, phppdo database. Phppdo is used to operate the database. the POD extension of the phppdo database is added to PHP5. This extension provides the PHP built-in class PDO for accessing the database. different databases use the
Phppdo operation database-yujon POD extension is added to PHP5, which provides PHP built-in class PDO for database access. different databases use the same method name, solve the problem of inconsistent database connections.
PDO
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