epub |eng | 2015-05-07 | Author:Swift, Os [Swift, Os]

Mahran 20 Mahnaz NULL Jen NULL Gill 20 4 rows in set (0.00 sec) mysql> You can see that = and!=do not work with NULL values as follows: mysql> SELECT ...

epub |eng | 2018-11-28 | Author:Vladimir Muzny & Marek Chmel [Vladimir Muzny]

epub |eng | | Author:Ivan Idris

What just happened? We covered three bit twiddling hacks—checking whether the signs of integers are different, checking whether a number is a power of 2, and calculating the modulus of ...

epub |eng | 2017-06-30 | Author:Dusan Petkovic

RAID 0 specifies disk striping without parity. Using RAID 0, the data is written across several disk drives in order to allow data access more readily, and all read and ...

epub |eng | 2019-04-02 | Author:Allen G. Taylor

USING VULNERABILITY TESTING TOOLS Some developers try to protect their sites from SQL injection attacks by using a drop-down menu to restrict data entry to legal values. Others place size ...

mobi |eng | 2019-03-21 | Author:Glass, Lauren [Glass, Lauren]

Let’s introduce a new table, user_revenue: An INNER JOIN only returns data where the values in the chosen columns match up exactly in both tables. You choose columns with the ...

epub |eng | 2008-02-25 | Author:Joseph Albahari & Ben Albahari [Albahari, Joseph]

Joining in lambda syntax The following comprehension syntax join: from c in customers join p in purchases on c.ID equals p.CustomerID select new { c.Name, p.Description, p.Price }; in lambda ...

epub, pdf |eng | 2018-11-20 | Author:Allen G. Taylor

RULE BY COMMITTEE The SQL-89 version of the standard specified the UNIQUE rule as the default, before anyone proposed or debated the alternatives. During development of the SQL-92 version of ...

epub |eng | 2017-08-03 | Author:Christian Cote

epub, azw3, pdf |eng | 2017-05-28 | Author:Charlotte McGary [McGary, Charlotte]

To use LIKE, you would rewrite the query as follows: (IMPORTANT: the __ in the WHERE statement below is two successive underscore characters.): SELECT Planet FROM dbo.Planets WHERE Planet LIKE ...

epub, pdf |eng | 2016-12-12 | Author:Henry Hayes [Hayes, Henry]

The code can be simplified further but with a bit complex process. This procedure would actually allow inserting the exact data without any hassle. As a beginner, you don’t need ...

epub |eng | 2016-11-01 | Author:Alvaro, Felix

Only Selected Columns at a Time In Chapter 5, the JobPosition field of Customer_TBL table was defined to allow null values. If in case you have a new customer but ...

azw3 |eng | 2016-11-01 | Author:Alvaro, Felix [Alvaro, Felix]

Only Selected Columns at a Time In Chapter 5, the JobPosition field of Customer_TBL table was defined to allow null values. If in case you have a new customer but ...

mobi, epub, pdf |eng | 2016-11-02 | Author:Felix Alvaro

Only Selected Columns at a Time In Chapter 5, the JobPosition field of Customer_TBL table was defined to allow null values. If in case you have a new customer but ...

epub |eng | 2016-07-05 | Author:Prabagaran P [P, Prabagaran]

CREATE TABLE `softwarecompany`.`sw` ( `id` INT NOT NULL, `pos` VARCHAR(45) NULL, `sname` VARCHAR(45) NULL, PRIMARY KEY (`id`)); ------------------------------------------------------------------------------------------------------------------------------ INSERT INTO `softwarecompany`.`sw` (`id`, `pos`, `sname`) VALUES ('111', 'man', 'a'); INSERT INTO ...