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Smallest data URI image possible for a transparent image

... After playing around with different transparent GIFs, some are unstable and cause CSS glitches. For example, if you have an <img> and you use the tiniest transparent GIF possible, it works fine, however, if you then want your transparent GIF to have a background-image, then this is im...
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How are virtual functions and vtable implemented?

...ons in C++": Whenever a program has a virtual function declared, a v - table is constructed for the class. The v-table consists of addresses to the virtual functions for classes that contain one or more virtual functions. The object of the class containing the virtual function contains a virtual...
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PDO Prepared Inserts multiple rows in single query

... fields to create the ? placeholders to bind your parameters. insert into table (fielda, fieldb, ... ) values (?,?...), (?,?...).... That is basically how we want the insert statement to look like. Now, the code: function placeholders($text, $count=0, $separator=","){ $result = array(); ...
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How can I make a JPA OneToOne relation lazy

... a proxy object or NULL and it can't determine that by looking at its base table's columns due to one-to-one normally being mapped via shared PK, so it has to be eagerly fetched anyway making proxy pointless. Here's a more detailed explanation. many-to-one associations (and one-to-many, obviously) d...
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How to remove a column from an existing table?

How to remove a column from an existing table? 11 Answers 11 ...
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Safely remove migration In Laravel

...p-autoload Modify your database: Remove the last entry from the migrations table share | improve this answer | follow | ...
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How important is the order of columns in indexes?

...index pages that the optimiser must scan; this can be significant in large tables with millions of rows – Paul Hatcher Oct 28 '16 at 14:58  |  ...
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Why do table names in SQL Server start with “dbo”?

At least on my local instance, when I create tables, they are all prefixed with "dbo.". Why is that? 3 Answers ...
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Make Iframe to fit 100% of container's remaining height

...ault and whitespace starts creating weird overflows otherwise. Option 2 - tables. Works when you don't know the height of the first part. You can use either actual <table> tags or do it the fancy way with display: table. I'll go for the latter because it seems to be in fashion these days. ...
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How do I use CREATE OR REPLACE?

... post for the third time, I'll reformulate this: This does not work on tables :) And yes, there is documentation on this syntax, and there are no REPLACE option for CREATE TABLE. share | impro...