function keys

Introduction to common Linux shortcut keys and linux shortcut keys Back to the upper Directory: cd .. command Prompt: user @ ubuntu: @ is the current user ID name; @ is the host name before the colon (sudo): (Superusers Do) is executed by the super user in the relative path ,. indicates the current directory ,.. indicates that the upper-level directory pwd: (print working directory) of the current director

followed by functions.11.ALT+F1 you can position the element you are editing in each panel12.ctrl+p, can display parameter information13.ctrl+shift+insert can select Clipboard contents and insert14.alt+insert can generate constructors/getter/setter, etc.15.ctrl+alt+v can introduce variables. For example, to assign a variable to a SQL in parentheses16.ctrl+alt+t can wrap code inside a piece, such as Try/catch17.alt+up and Alt+down can be moved quickly between methods18. In some places, press Alt

123456789Ten One A theThe page has a div 100*100 color yellow press the keyboard and the left and right keys can operate div Mobile CTRL + keyboard up and down can zoom out CTRL + keyboard around keys can be randomly changed color

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with a table without a primary key or unique key? If your table does not has a unique index (or a PRIMARY KEY constraint or UNIQUE key constraint, both of which create a U Nique index behind the scenes), then your dynamic cursor is converted to a static cursor. And all static cursors must is read only. If one of the tables referenced by the cursor has no unique index, the cursor would be converted to STATIC. And STATIC cursors is read-only. See Using implicit Cursor Conversions for more informa

symmetric KEY Testsymmetrickey decryption by CERTIFICATE Testcertificate;6, insert the encrypted data into the table person insert into person (ContactID, Efirstname, Emiddlename, Elastname) VALUES (1, EncryptByKey (Key_GUID ('Testsymmetrickey'),'Efirstname'), EncryptByKey (Key_GUID ('Testsymmetrickey'),'Emiddlename'), EncryptByKey (Key_GUID ('Testsymmetrickey'),'Elastname') )7, decrypt the data in 6 UPDATE person SET FirstName=CONVERT (Varchar,decryptbykey (Efirstname)), MiddleName=CONVERT (Va

Tablespace hooms Temporary tablespace temp; --Create TABLE space Create Tablespace myms DataFile ' c:\myMS.dbf ' Size 1M Autoextend on; --scale table space--Modify table space size ALTER DATABASE DataFile ' c:\myMS.dbf ' Resize 2M; --Extension tablespace--Add data file Alter Tablespace myms Add datafile ' c:\myMS_2.dbf ' Size 1M; --Set the DBF file to grow automatically ALTER DATABASE DataFile ' c:\myMS_2.dbf ' Autoextend on next 2M maxsize 4M; --Table Space renamin

Use Two years ago, I used the following code in a small case: "Use the direction to split the cursor Recently, there is another need to handle the function of the case, which can be switched to the same Js. In order to prove that he is not a growth hacker, there has been a small growth in technical skills in two years, the function of manually turning the left and right sides into the focal point is al

In general, we can see that the terms ldquo; index rdquo; and ldquo; key rdquo; are used for exchange, but these two are actually different. An index is a physical knot stored in a database. In general, we can see that the terms ldquo; index rdquo; and ldquo; key rdquo; are used for exchange, but these two are actually different. An index is a physical knot stored in a database. Generally, we can see that the terms "Index" and "key" are used for exchange, but they are actually different. An

Linux terminal usage tips Today, we found that Linux terminals have so many easy-to-use shortcut keys. Shift + Ctrl + T: Create a tab Shift + Ctrl + W: Close the tab CTRL + Pageup: Previous Tab CTRL + Pagedown: Next Tab Shift + Ctrl + Pageup: tab left shift Shift + Ctrl + Pagedown: Right Shift of the tab Alt + 1: Switch to Tab 1 Alt + 2: Switch to Tab 2 Alt + 3: Switch to tab 3 Shift + Ctrl + N: New window Shift + Ctrl + Q: C

Ps shortcut keys and ps common shortcut keysPs shortcut keys1. Toolbox (if multiple tools share one shortcut key, you can press Shift to add this shortcut key at the same time)Rectangular and elliptical box selection tool [M]Mobile tool [V]Loose, polygon, and magnetic loose [L]Magic wand tool [W]Cropping tool [C]Slicing tool and selecting tool [K]Spray gun tool [J]Paint Brush tools and pencil tools [B]Pictures and stamps (S]History paint tools, art hi

; Win +↓: Restore/Minimize the current window; Win +←: The current window to the left up and down to maximize; Win +→: The current window to the right up and down to maximize; Win + HOME: Minimize all windows except the current activation window; Win + Pause: Displays the System Properties dialog box; Win + TAB: Cycle through the program on the taskbar and use the Aero three-dimensional effect; Win + Space (SPACEBAR): Desktop window transparent display desktop, using Aero Peek display des

UNIQUE Constraint A unique constraint is essentially the same as creating a unique index, because when a unique constraint is created, the system creates a unique index that implements the constraint through a unique index. However, the unique constraint more intuitively expresses the uniqueness of the corresponding column, making the purpose of the corresponding index clearer, so it is generally recommended to create a unique constraint instead of just creating a unique index. The operation t

Sometimes clear_block ('another Block') is removed in the trigger when-clear-block, and an error in the FRM-41009 is reported. You can use the following method to ignore this error. Even though you cannot suppress it, you can create an on-error

F1: If you are in a selected program and need help, then press F1, and if you're not in any program now, but in a resource manager or desktop, then pressing F1 will show you the Windows helper, if you're working on a program and want Windows Help,

VI, VIM configuration up and down ARROW keys and delete keys1 "An example for a VIMRC file.2 "3 "maintainer:bram Moolenaar 4 "Last change:2002 Sep5 "6 "to use it, copy it to7 "For Unix and OS/2: ~/.VIMRC8 "For AMIGA:S:.VIMRC9 "For MS-dos and Win32: $VIM \_VIMRCTen "For OPENVMS:SYS$LOGIN:.VIMRC One A "When started as"Evim", Evim.vim would already has done these settings. - ifV:progname =~?"Evim" - Finish the endif - - "Use the Vim settings, rather th

I am the eclipse turned around, IntelliJ idea can be set into Eclipse shortcut key style, may be a little different, according to the needs of their own configuration on the line. Set the shortcut key, open the settings (ctrl+alt+s) Search Keymap, select Eclipse in Keymaps.Using Eclipse's Code completion shortcut key alt+/has been accustomed to, but inteljidea this shortcut key combination has no effect, then we can modify it, press Ctrl+alt+s to open the settings interfaceThen select Eclipse in

Operation Steps: Windows logo key related shortcut keys The Windows logo key is displayed as a Windows banner, or a button marked with text win or Windows, which is called the win key. Win: Turn on or off the Start menu (just one button) Win+1: Opens/Displays the program that the first icon in the Super taskbar represents Win+2: Opens/Displays the program represented by the second icon in the Super Taskbar (3, 4 、...... So the analogy) Win+d: To

someone was impersonating me and sending him a letter. How to do it. I sent my letter, the content is C, with my private key 2, encrypted, encrypted content is D, to X, and then tell himDecryption look is not C. He decrypted it with my public key 1 and found that it was c.At this point, he would think that the data that can be decrypted with my public key must be encrypted with my private key. Only I knew I had the private key, so he could confirm that it was really my hair.So we can confirm th