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  • Oracle 查看存储内存

    2016-04-27 00:43:00
    --分配表的物理存储1 select segment_name, bytes 2 from user_segments 3 where segment_type = 'TABLE'; 4 5 Select Segment_Name,Sum(bytes)/1024/1024 From User_Extents Group By Segment_Name ...

     

    --分配表的物理存储
    1
    select segment_name, bytes 2 from user_segments 3 where segment_type = 'TABLE'; 4 5 Select Segment_Name,Sum(bytes)/1024/1024 From User_Extents Group By Segment_Name

     

     

     

    select num_rows * avg_row_len from user_tables where table_name = 'FCT_QUERY_LOG';

     

     

     

    转载于:https://www.cnblogs.com/fkissx/p/5437306.html

    展开全文
  • 下面为查看可用存储内存大小的示例,用于查看和内部和外部存储器的总存储。 [code="java"]import java.io.File; import android.os.Environment; import android.os.StatFs; public class ...
    下面为查看可用存储内存大小的示例,用于查看和内部和外部存储器的总存储。
    import java.io.File;   

    import android.os.Environment;
    import android.os.StatFs;

    public class MemoryStatus {

    static final int ERROR = -1;

    static public boolean externalMemoryAvailable() {
    return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
    }

    static public long getAvailableInternalMemorySize() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long availableBlocks = stat.getAvailableBlocks();
    return availableBlocks * blockSize;
    }

    static public long getTotalInternalMemorySize() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long totalBlocks = stat.getBlockCount();
    return totalBlocks * blockSize;
    }

    static public long getAvailableExternalMemorySize() {
    if(externalMemoryAvailable()) {
    File path = Environment.getExternalStorageDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long availableBlocks = stat.getAvailableBlocks();
    return availableBlocks * blockSize;
    } else {
    return ERROR;
    }
    }

    static public long getTotalExternalMemorySize() {
    if(externalMemoryAvailable()) {
    File path = Environment.getExternalStorageDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long totalBlocks = stat.getBlockCount();
    return totalBlocks * blockSize;
    } else {
    return ERROR;
    }
    }

    static public String formatSize(long size) {
    String suffix = null;

    if (size >= 1024) {
    suffix = "KiB";
    size /= 1024;
    if (size >= 1024) {
    suffix = "MiB";
    size /= 1024;
    }
    }

    StringBuilder resultBuffer = new StringBuilder(Long.toString(size));

    int commaOffset = resultBuffer.length() - 3;
    while (commaOffset > 0) {
    resultBuffer.insert(commaOffset, ',');
    commaOffset -= 3;
    }

    if (suffix != null)
    resultBuffer.append(suffix);
    return resultBuffer.toString();
    }
    }


    来个更简单的
            private void update() {
    File path = Environment.getExternalStorageDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long totalBlocks = stat.getBlockCount();
    long availableBlocks = stat.getAvailableBlocks();
    mTotalSize.setText(formatSize(totalBlocks * blockSize));
    mUsedSize.setText(formatSize((totalBlocks - availableBlocks) * blockSize));
    mAvailableSize.setText(formatSize(availableBlocks * blockSize));
    }

    private String formatSize(long size) {
    return Formatter.formatFileSize(this, size);
    }
    展开全文
  • 下面为查看可用存储内存大小的示例,用于查看和内部和外部存储器的总存储。   import java.io.File; import android.os.Environment; import android.os.StatFs; public class MemoryStatus { ...

    下面为查看可用存储内存大小的示例,用于查看和内部和外部存储器的总存储。

     

    import java.io.File;   
      
    import android.os.Environment;   
    import android.os.StatFs;   
      
    public class MemoryStatus {   
      
        static final int ERROR = -1;   
           
        static public boolean externalMemoryAvailable() {   
            return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);   
        }   
           
        static public long getAvailableInternalMemorySize() {   
            File path = Environment.getDataDirectory();   
            StatFs stat = new StatFs(path.getPath());   
            long blockSize = stat.getBlockSize();   
            long availableBlocks = stat.getAvailableBlocks();   
            return availableBlocks * blockSize;   
        }   
           
        static public long getTotalInternalMemorySize() {   
            File path = Environment.getDataDirectory();   
            StatFs stat = new StatFs(path.getPath());   
            long blockSize = stat.getBlockSize();   
            long totalBlocks = stat.getBlockCount();   
            return totalBlocks * blockSize;   
        }   
           
        static public long getAvailableExternalMemorySize() {   
            if(externalMemoryAvailable()) {   
                File path = Environment.getExternalStorageDirectory();   
                StatFs stat = new StatFs(path.getPath());   
                long blockSize = stat.getBlockSize();   
                long availableBlocks = stat.getAvailableBlocks();   
                return availableBlocks * blockSize;   
            } else {   
                return ERROR;   
            }   
        }   
           
        static public long getTotalExternalMemorySize() {   
            if(externalMemoryAvailable()) {   
                File path = Environment.getExternalStorageDirectory();   
                StatFs stat = new StatFs(path.getPath());   
                long blockSize = stat.getBlockSize();   
                long totalBlocks = stat.getBlockCount();   
                return totalBlocks * blockSize;   
            } else {   
                return ERROR;   
            }   
        }   
           
        static public String formatSize(long size) {   
            String suffix = null;   
           
            if (size >= 1024) {   
                suffix = "KiB";   
                size /= 1024;   
                if (size >= 1024) {   
                    suffix = "MiB";   
                    size /= 1024;   
                }   
            }   
           
            StringBuilder resultBuffer = new StringBuilder(Long.toString(size));   
           
            int commaOffset = resultBuffer.length() - 3;   
            while (commaOffset > 0) {   
                resultBuffer.insert(commaOffset, ',');   
                commaOffset -= 3;   
            }   
           
            if (suffix != null)   
                resultBuffer.append(suffix);   
            return resultBuffer.toString();   
        }   
    }  
    

     

     

     来个更简单的

     

            private void update() {
            File path = Environment.getExternalStorageDirectory();
            StatFs stat = new StatFs(path.getPath());
            long blockSize = stat.getBlockSize();
            long totalBlocks = stat.getBlockCount();
            long availableBlocks = stat.getAvailableBlocks();
            mTotalSize.setText(formatSize(totalBlocks * blockSize));
            mUsedSize.setText(formatSize((totalBlocks - availableBlocks) * blockSize));
            mAvailableSize.setText(formatSize(availableBlocks * blockSize));
    	}
    	
        private String formatSize(long size) {
            return Formatter.formatFileSize(this, size);
        }

     

    展开全文
  • 查看内存存储

    2012-05-03 10:05:15
    import java.io.File; import android.os.Environment; import android.os.StatFs; public class MemoryStatus { static final int ERROR = -1;...static public boolean externalMemoryAvailable()...
    import java.io.File; 

    import android.os.Environment;
    import android.os.StatFs;

    public class MemoryStatus {

    static final int ERROR = -1;

    static public boolean externalMemoryAvailable() {
    return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
    }

    static public long getAvailableInternalMemorySize() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long availableBlocks = stat.getAvailableBlocks();
    return availableBlocks * blockSize;
    }

    static public long getTotalInternalMemorySize() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long totalBlocks = stat.getBlockCount();
    return totalBlocks * blockSize;
    }

    static public long getAvailableExternalMemorySize() {
    if(externalMemoryAvailable()) {
    File path = Environment.getExternalStorageDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long availableBlocks = stat.getAvailableBlocks();
    return availableBlocks * blockSize;
    } else {
    return ERROR;
    }
    }

    static public long getTotalExternalMemorySize() {
    if(externalMemoryAvailable()) {
    File path = Environment.getExternalStorageDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = stat.getBlockSize();
    long totalBlocks = stat.getBlockCount();
    return totalBlocks * blockSize;
    } else {
    return ERROR;
    }
    }

    static public String formatSize(long size) {
    String suffix = null;

    if (size >= 1024) {
    suffix = "KiB";
    size /= 1024;
    if (size >= 1024) {
    suffix = "MiB";
    size /= 1024;
    }
    }

    StringBuilder resultBuffer = new StringBuilder(Long.toString(size));

    int commaOffset = resultBuffer.length() - 3;
    while (commaOffset > 0) {
    resultBuffer.insert(commaOffset, ',');
    commaOffset -= 3;
    }

    if (suffix != null)
    resultBuffer.append(suffix);
    return resultBuffer.toString();
    }
    }
    展开全文
  • 广播组网传输数据平台协议 TI ZStack-2.5.1aCC2530存储简介存储分类RAM静态 RAM(SRAM)动态 RAM(DRAM)ROMPROMEPROMEEPROMFLASHNOR FLASHNAND FLASH单片机存储类型与存储区关系C 语言程序占用的内存栈区(stack)堆区...
  • 1、free -m:查看内存使用情况 swap是指虚拟内存 2、df -m-物理存储情况
  • 一、调试--》窗口--》内存 定义结构体A struct A { int a; char b; char *c; char d; }; int main() { A * pa = new A(); pa->a = 5; pa->b = 'a'; pa->c = "hello"; pa->d = 'b'; ...
  • 上面的代码可以将浮点数在内存中的保存以十六进制显示出来, 通过这个网站的对比, https://www.h-schmidt.net/FloatConverter/IEEE754.html ,代码运行正确。 -1000十六进制就是0xc47a0000,最高位就是负的。...
  • 查看变量在内存中的地址及存储的数据。 分析方法: 1、VS2015的单步调试(F10); 2、打开调试→窗口→内存1.2.3.4; 结论: 1、数组的元素在内存中是连续的, 2、int类型的变量在内存中占4个字节,与...
  • 通过gdb调试代码来观察int和unsigned变量的存储形式以及移位方式,代码如下。 在关键位置设置断点 ...输入run使得程序运行,再输入n使得程序单步运行。...用gdb查看内存 格式: x /nfu 说明 x 是 e...
  • oracle内存存储

    2021-03-22 09:17:38
    启用内存中列存储 ALTER SYSTEM SET SGA_TARGET=3G SCOPE=SPFILE; ALTER SYSTEM SET INMEMORY_SIZE=2G SCOPE=SPFILE; SHUTDOWN IMMEDIATE; STARTUP; 查看当前的IM设置 ALTER SESSION SET CONTAINER=cdb$root; SHOW ...
  • 内存:top 磁盘存储: df -lh(文件系统du -h) 端口占用:netstat -tunlp 进程:ps -aux | grep 进程名 io读写:iotop (没有通过yum安装)(观察大内存读写)
  • 硬件环境主要包括CPU、内存、磁盘/存储、网络设备(如F5等)、系统特有设备(如密押设备等)等,其中网络设备和系统特有设备由网络管理员或项目组提供为准,本节主要关注CPU、内存、磁盘/存储的验证方式。...
  • 1、cpu linux环境: # 总核数 = 物理CPU个数 X 每颗物理CPU的...# 查看物理CPU个数 cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l # 查看每个物理CPU中core的个数(即核数) cat /pro...
  • 1. 定义结构体 struct A{ char *name;//姓名,指针在64位系统占用8个字节 int num;...2.gdb 查看 3. 分析 采用打印成员变量“地址”的方式判断成员占用的字节大小。 如*name占用的字节大小
  • 前三讲的内容讲得很不详细,因为这是之前...获得当前存储信息要用到的函数BOOL WINAPI GlobalMemoryStatusEx(__inout LPMEMORYSTATUSEX lpBuffer);其中,lpBuffer是一个MEMORYSTATUSEX结构体,可以获取当前的存储信息。
  • Redis 分配器分配的内存总量,也就是内部存储的所有数据内存占用量 used_memory_human 以可读的格式返回 used_memory used_memory_rss 从操作系统的角度显示 Redis 进程占用的物理内存总量 used_memory_rss_...
  • 数据在内存中的存储

    2020-02-26 13:26:34
    1.大端序和小端序 数据在内存存储的字节顺序不同,其中大端序是符合平时的习惯,将数据的高字节部分存储于低...可以根据大小端序存储的区别,将一个实际数据存入内存中,如a = 0x11223344,通过查看内存中变量a起始...
  • 装有Uedit么,或者查看16进制的工具用Uedit打开这个a.txt,楼主就可以看到了,如果看到的是非法字符,操作Ctrl+h就可以切换到16进制查看模式。[code=C/C++]#include "stdio.h"int main(void){ int a = 6; FILE
  • 内存中数据的存储方式?5.内存中数据地址的高位、低位? 1.C语言代码 #include <stdio.h> int main() { int my_list[10] = { 12, 34, 56, 78 , 89 }; printf("内存地址为:%p \n", &my_list[0])...
  • 如何查看redis内存使用情况Redis 是一个开源(BSD许可)的,内存中的数据结构存储系统,它可以用作数据库、缓存和消息中间件。Redis的基本特点之一内存数据库,因为其数据是放在内存中的所以查询、操作非常快,但是...
  • 目录: 1、bool 2、char 3、short、int、long 4、float(更为详细的转换可参看对...7、使用C-Free查看数据在内存中的存储 1)源码 2)C-Free图解数据在内存存储情况 -------------------------------------------- ...
  • 在vs的调试过程中,我们可以调出内存查看窗口和监视窗口。 我们先来看个东西,我们在vs中定义一个int类型的变量a 可以发现a的内存地址是0x0019feec 44存在了0019FEEC上 33存在了0019FEED上 22存在了0019FEEE上 11...

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