sec curity

Har (()) charset = UTF8;Query OK, 0 rows affected (0.04 sec)master [localhost] {msandbox} (Test) > Set names GBK;Query OK, 0 rows Affected (0.00 sec)master [localhost] {msandbox} (Test) > INSERT into Charset_test_utf8 (Char_col) VALUES (' Chinese ');Query OK, 1 row affected, 1 warning (0.01 sec)master [localhost] {msandbox} (Test) > Show warnings;+---------+----

Tags: update self-increment column1. Description(1) For the MyISAM table, if you update the self-increment column with update, an error occurs if the column value repeats with the existing value, and if it is greater than the existing maximum, the auto_increment of the table is automatically updated and the operation is safe.(2) for the InnoDB table, the Update Auto_increment field, if the column values and the existing values are duplicated, then an error occurs, if the value is greater than th

MySQL Tutorial federated query View implementation method Mysql>Mysql> CREATE TABLE Employee (-> ID int,-> first_name varchar (15),-> last_name varchar (15),-> start_date Date,-> end_date Date,-> Salary Float (8,2),-> City varchar (10),-> description varchar (15)->);Query OK, 0 rows affected (0.02 sec) Mysql>Mysql> CREATE TABLE Job (-> ID int,-> title varchar (20)->);Query OK, 0 rows affected (0.06 sec)

The PhysicalDisk counter records the performance of the entire physical disk, which is used to understand disk response speed, mainly using the PhysicalDisk counter to analyze disk performance issues.Disk performance counters that are frequently used at the system level are PhysicalDisk counters and logcialdisk are for informational purposes only: %disk time: Indicates how busy disk is, as a percentage of disk processing read-write requests, often greater than 100%, and recommends usin

Tags: specify MYS Select Start time ROM date Ros BSP cond1.Unix_timestamp MySQL provides the unix_timestamp () function to calculate The number of seconds that have elapsed since 1970-01-01 08:00:00. The start time here is 1970-01-01 08:00:00, not 1970-01-01 00:00:00. For time earlier than 1970-01-01 08:00:00 , the return value is 0. This relative time unit is seconds, which supports decimals. Mysql> select Unix_timestamp (); +------------------+ | Unix_timestamp () | +------------------+ | 1

Label:For an existing data, how do we package it into a. sql property file?Make these two statements directly:1 D:\Program files\mysql\mysql\bin>-->D://str . SQL2* * *Thus, a str.sql file was generatedBut we generated a SQL procedure, how to draw it into the database?? This is just a operation for MySQL!!First, we enter CMD---mysql-uroot-p***;Then do such an operation,mysql> source D://str.sqlThis can be imported into the database!!!!Query OK, 0 rows affected (0.05

General countersCollects server performance information for operating system servers, including processor, disk, network, memoryProcessor Processor1.1% Processor time refers to the percentage that the processor uses to perform non-idle threads. This counter allows you to determine the current percentage of CPU usage for the server.1.2% Privileged is the percentage of time that the process thread spends executing code in privileged mode. When Windows system Services is invoked, this service often

Sun.misc. Base64encoder The /base64decoder class is not part of the JDK standard library category, but it is included in the JDK and can be used directly, but this does not have Java doc, which is not a recommended tool class in the JDK. It is highly recommended not to use Sun.misc, which is not safe. Bouncycastle jar Package:http://www.bouncycastle.org/latest_releases.html Package Com.tvm.mrz.security.base64;import Java.io.ioexception;import org.apache.commons.codec.binary.Base64; Import

:06:40uptime 0 days 0 hr. 0 min. 0 sectrace Level OFFSE Curity on:local OS authenticationsnmp offlistener Parameter File/home/oracle/pro Duct/10g/network/admin/listener.oralistener Log file/home/oracle/product/10g/network/log/listener.loglistening En Dpoints Summary ... (Description= (address= (PROTOCOL=IPC) (KEY=EXTPROC2))) (Description= (address= (protocol=tcp) (Host=redhat) (port=1522))) Services Summary ... Service "Plsextproc" has 1 instance (

configuration file, or through the database to remove the user information to match, the match succeeds, then pass. At first I learned very confused, is to complicate the problem, in fact, see the essence of the good. No nonsense, just say how to fetch user information from the database. The above section of the springsecurity configuration file is very important, first of all about the data from the library to take the user login credentials. Since it is from the database to fetch the user in

One of the easiest-protect and secure SSH logins by displaying warming message to un-authorized users or D Isplay Welcome or informational messages to authorized users.being asystem Administrator whenever Configure Linux servers I always use to configure a SE Curity banners for SSH logins. The banner contains some security warning information or general information. See my example banner message which I used for my all servers. alert! You i

/pages/secAvailable bytes The remaining available physical memory in megabytes (reference: >=10%). Indicates the current number of bytes of memory that the process can use. Pages/sec indicates the number of pages fetched from disk due to hardware page faults, or the number of pages written to disk to free working set space due to a page fault . If the value of Available Bytes is small (4 MB or less), the total memory on the computer may be insufficie

The order by statement is used to sort the result set based on the specified column. BY default, the order by statement sorts records in ascending ORDER. If you want to sort records in descending order, you can use the DESC keyword. Instance SELECT Company, OrderNumber FROM Orders order by Company, OrderNumber Note: The above results contain two equal Company Names (www.111cn.cn ). Only once, when the first column has the same value, the second column is in ascending order. This is also true

. h -- Installing: C:/Program Files/Tutorial/bin/libMathFunctions. -- Installing: C:/Program Files/Tutorial/include/MathFunctions. h 　　Installation result:C: \ Program Files \ Tutorial> tree/f C :. Zhu── bin │ LibMathFunctions. │ Tutorial.exe │ └ ── Include MathFunctions. h TutorialConfig. h 　　Run make test: D: \ Projects \ Lab \ testngpp \ cmake-2.8.1 \ Tests \ Tutorial \ Step3 \ build> make test Running tests... Test project D:/Projects/Lab/testngpp/cmake-2.8.1/Tests/Tutorial/Step3/build Start

Output data in a cursor, outputcursor Http://www.java2s.com/Code/ SQL /Cursor/Outputdatainacursor.htm mysql>mysql>mysql> CREATE TABLE Employee( -> id int, -> first_name VARCHAR(15), -> last_name VARCHAR(15), -> start_date DATE, -> end_date DATE, -> salary FLOAT(8,2), -> city VARCHAR(10), -> description VARCHAR(15) -> );Query OK, 0 rows affected (0.05 sec