大约有 40,000 项符合查询结果（耗时：0.0519秒） [XML]
How to test an SQL Update statement before running it?
...
What about Transactions? They have the ROLLBACK-Feature.
@see https://dev.mysql.com/doc/refman/5.0/en/commit.html
For example:
START TRANSACTION;
SELECT * FROM nicetable WHERE somthing=1;
UPDATE nicetable SET nicefield='VALUE' WHERE somthing=1;
SELECT * FROM nicetable WHERE somthing=1...
Why does base64 encoding require padding if the input length is not divisible by 3?
... a base converter for arbitrary base conversion I created for you. Enjoy!
https://convert.zamicol.com/
What are Padding Characters?
Padding characters help satisfy length requirements and carry no meaning.
Decimal Example of Padding:
Given the arbitrary requirement all strings be 8 characters ...
How much size “Null” value takes in SQL Server
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Android Spanned, SpannedString, Spannable, SpannableString and CharSequence
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Is it possible to for SQL Output clause to return a column not being inserted?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What does this symbol mean in JavaScript?
... Three dots: spread syntax; rest parameters
(...args) => {} — https://stackoverflow.com/questions/42184674/what-is-the-meaning-of-args-three-dots-in-a-function-definition
[...iter] — https://stackoverflow.com/questions/33890525/javascript-es6-array-feature-data-0-spread-operator
{....
Why use make over a shell script?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Single Line Nested For Loops
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Why switch is faster than if
...his is called "Branch Prediction". For more information on this, see here: https://dzone.com/articles/branch-prediction-in-java
Your experiences may vary. I don't know that the JVM doesn't run a similar optimization on LookupSwitch, but I've learned to trust the JIT optimizations and not try to out...
What does “#define _GNU_SOURCE” imply?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...