大约有 16,400 项符合查询结果（耗时：0.0295秒） [XML]
How to find a table having a specific column in postgresql
I'm using PostgreSQL 9.1. I have the column name of a table. Is it possible to find the table(s) that has/have this column? If so, how?
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Proper use of errors
I'm using TypeScript for a reasonably large project, and am wondering what the standard is for the use of Error s. For example, say I hand an index out of bounds exception in Java:
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Why do I get a warning every time I use malloc?
If I use malloc in my code:
5 Answers
5
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Temporarily switch working copy to a specific Git commit
How to switch to specific Git commit without losing all the commits made after it ?
3 Answers
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Example for sync.WaitGroup correct?
Is this example usage of sync.WaitGroup correct? It gives the expected result, but I am unsure about the wg.Add(4) and the position of wg.Done() . Does it make sense to add the four goroutines at once with wg.Add() ?
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How do I get AWS_ACCESS_KEY_ID for Amazon?
I'm totally new to AWS.
5 Answers
5
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How to split a string and assign it to variables
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Two steps, for example,
package main
import (
"fmt"
"strings"
)
func main() {
s := strings.Split("127.0.0.1:5432", ":")
ip, port := s[0], s[1]
fmt.Println(ip, port)
}
Output:
127.0.0.1 5432
One step, for example,
p...
Example invalid utf8 string?
I'm testing how some of my code handles bad data, and I need a few series of bytes that are invalid UTF-8.
5 Answers
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How do .gitignore exclusion rules actually work?
I'm trying to solve a gitignore problem on a large directory structure, but to simplify my question I have reduced it to the following.
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How to use GNU Make on Windows?
I installed MinGW and MSYS, added C:\MinGW\bin to PATH but I still can't run Makefile on Windows' cmd . I would like to run cmd.exe and there type, for example, make all but my cmd says that there is no such command.
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