Is there any good way to use PHP to process a very large SQLite file (tens of gigabytes)?

Is there any good way to use PHP to process a very large SQLite file (tens of gigabytes)? It just died when processing it~~

PHP中文网 2017-05-16 13:04:33 0  9  696

javascript - js decimal to hexadecimal

js decimal to hexadecimal conversion failed, I want to convert the result of sim1 to hexadecimal

淡淡烟草味 2017-05-19 10:23:57 0  1  729

objective-c - OC中怎样将十六进制转化为十进制

怎样将十六进制数转化为十进制数啊

为情所困 2017-04-28 09:06:19 0  1  1188

objective-c - iOS Nsdata (hexadecimal stored in it) converted to decimal

The NSdata header stores the length of the image, ru: <00000000 000768f3>, this is a hexadecimal number, how to convert it to decimal

PHP中文网 2017-05-02 09:31:46 0  1  683

php - Float data comparison size too large

{Code...} Just these two different numbers, if($a == $b){echo 'equal';} results in output of 'equal'. I know it is too large and beyond its range, so $a is output separately. The result is: 1.2345678912346E+16 hexadecimal. What is the best way to compare such large data?

曾经蜡笔没有小新 2017-06-21 10:11:00 0  4  882

hex - What is a better way to convert C++ decimal int to hexadecimal char?

Is there a better way to convert C++ decimal int to hexadecimal char? UPDATE: For example, 17 I hope that the changed result is char(0x00) char(0x11) instead of "11" char("1") char ("1")

怪我咯 2017-05-16 13:26:20 0  2  739

How did the teacher calculate this decimal to binary conversion? ? ?

Decimal to binary

水木年华 2021-01-23 09:42:20 0  1  1337

Are there any students from the 10th batch? Let's discuss and learn together!

Are there any students from the 10th batch? Let’s discuss and learn together!

Dusk 2020-01-03 09:31:53 0  2  1370

ios - Is there a more precise type than double in Swift? Why does the double type not display scientific notation if the value is too large?

If the double type value is too large, scientific notation will be used to display, for example, 5.6846032206862e+19. Multiplying tens digits by tens digits using the double type will result in inaccurate calculations. How to solve this problem. .

大家讲道理 2017-06-06 09:53:56 0  1  1420

There will be no more after Chapter 18? There is no video in the frame part

Chapter 18 Why are there no videos after PHP template engine Smarty?

young 2019-03-14 22:44:22 0  0  983

php - What method does everyone use to change MySQL passwords in batches?

MySQL password has not been changed for a long time. I changed it today. Suddenly I found a problem: there are about a dozen websites on the server. Every time I change the password, I need to go into the configuration file of each website program to modify each program. The password seems very trou...

大家讲道理 2017-05-16 13:10:04 0  2  400

MySQL deduplication, why can only a few hundred or dozens of duplicate data be removed each time, when there are obviously hundreds of thousands of duplicate data?

Requirement: Delete the items with the same primaryid and drugname in DRUG, and keep the smallest row of drug_seq. Question: MySQL uses these methods to remove duplicates. Why can it only remove hundreds or dozens of duplicate data each time? It is like squeezing out toothpaste. Execute it and remov...

P粉029305743 2022-09-05 14:49:26 0  0  839