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); -- defines string variables Begin Select ename into v_ename from EMP whereempno = aa; Dbms_output.put_line ('employee name: '| v_ename ); End; / If you want to display the salary, the execution part should be as follows: SQL code Select ename, Sal into v_ename, v_sal from EMP where empno = aa; Selectename, Sal into v_ename, v_sal from EMP where empno = aa; Instructions: Indicates the variable to be received from the console. Figure: PL/SQL block instances (3)Instance 3-includes the def

softwareInstall new product-do notcreat db Objects. This step is very important because the execution program in the installation package is not compatible with blibc2.0. Therefore, before patching, the Oracle engine cannot be started to create database objects.After the reception is completed and exited, the system prompts:Result: Success 4. Perform glibc correction on the Oracle execution program. The procedure is as follows: * Create the $ ORACLE_HOME/orapatch directory;* Copy glibcpatch. tg

. If no number is specified, it is 1. -D: Delete a rule from the rule chain. Either enter the complete rule or specify the rule number to delete it. -R: To replace a rule, the Rule Replacement sequence is not changed, and the number must be specified. -P: Sets the default action of a rule chain. -nL:-L,-nTo view the list of currently running firewall rules. 　　2.Chain name: Specifies the chain of the rule table, such as INPUT, OUPUT, FORWARD

Vi/Vim Picture copyright: lampbrother Note: After Entering Vim/Vi, the command mode is used by default. 1) Basic commands AAdd text behind the cursor IInsert text before the cursor : WqSave changes and exit ZZShortcut Key, save the modification and exit : Q!Exit Without saving changes : WSave changes 2) basic operations UCancel the previous operation Ctrl + rRestore the Undo operation in the previous step : Set nuSet row number : Set nonuCancel row number GgTo the first line GT

Engine/connectionpooling/dialect for database operations, the Engine uses connectionpooling to connect to the database and then executes the SQL statement through dialect. #!/usr/bin/env python#-*-coding:utf-8-*-from sqlalchemy import create_engine engine = Create_engine ("mysql+ Pymysql://root:123@127.0.0.1:3306/t1 ", max_overflow=5) # execute sql# cur = engine.execute (# " INSERT into hosts ( Host, color_id) VALUES (' 1.1.1.22 ', 3) #) # New insert row auto increment id# cur.lastrowi

h_size=10, Epochs=5, epoch_size=50) def get_dataset (): DataSet = Ocrdataset ('./ocr ') # Flatten images I Nto vectors.dataset.data = Dataset.data.reshape (Dataset.data.shape[:2] + ( -1,)) # One-hot Encode targets.target = Np.zeros (Dataset.target.shape + ()) For index, Np.ndenumerate (dataset.target): if Letter:target[index][ord (letter)-Ord (' a ')] = 1data Set.target = target# Shuffle Order of Examples.order = Np.random.permutation (len (dataset.d

usingSystem;usingSystem.Collections.Generic;namespaceCSharp Stack {classProgram {Static voidMain (string[] args) {Stackstring> stack =Newstackstring>(); Stack. Push ("element 1"); Stack. Push ("element 2"); Stack. Push ("element 3"); Stack. Push ("element 4"); //traversing elements foreach(stringIteminchstack) {Console.WriteLine (item); } //Pop popup element to remove and return the object at the top of the Stack. Console.WriteLine ("\

Describes how to filter strings in PHP. We all know the sample code for PHP to filter strings :? Phpnl2br (); ntobraddslashes (); stripslashes (); when operating on the database, escape the special character chop (); we all know the characters except the string on the right.Sample code for PHP to filter strings: ? Php Nl2br (); // N Addslashes (); stripslashes (); // Escape special characters for database operations Chop (); // Remove spaces on the right of the string Trim ();

user password(A1,B1,C1), there is also a factory password(A2,B2,C2) (because it's a fake manufacturer, so it 's a pit-dad.==). More pit father is, because of years of disrepair, when the person who opened the door to use the password and the correct password for each of the difference is not more than2, the door lock will open. (Fall! )For example, the user password is(a), the factory password is(4,5,6),Nto be9, this time, if you use a password(1,9,5

Problem Descriptionafter The King ' s speech, everyone is encouraged. But the war isn't over. The king needs to give orders from time to time. But sometimes he can not speak things well. So in his order there is some ones like this: "Let the group-p-p three come to me". As can see letter ' P ' repeats for 3 times. Poor king!Now, it's war time, because of the spies from enemies, sometimes it's pretty hard-to-do which order s come from the king. But fortunately the general know what the King Speak

Topic Links:King ' s OrderTime limit:2000/1000 MS (java/others)Memory limit:65536/65536 K (java/others)Total submission (s): 101 Accepted Submission (s): 59Problem Descriptionafter The King ' s speech, everyone is encouraged. But the war isn't over. The king needs to give orders from time to time. But sometimes he can not speak things well. So in his order there is some ones like this: "Let the group-p-p three come to me". As can see letter ' P ' repeats for 3 times. Poor king!Now, it's war time

important mission, which is to initialize the runtime library, Ready to be called when our program executes.So what do these functions specifically do? With MSDN we can tell---they go further and invoke other functions, allowing C/+ + Runtime library code to invoke constructors and destructors on static non-local variables.The first excerpt from MSDN is explained below:When you link your image, you either explicitly or implicitly specify a entry point, the operating system would call I

although the log content inserted 1000 data, but only a new connection, and finally closed the connection (log as follows). In other words, the normal sqlsession in MyBatis seems to have been done for bulk insert by default in a single connection. Then also provide executortype.batch way to do, moreover this way seems not efficient, or I use Executortype.batch way wrong?? DEBUG [main]-Created connection 3502256. DEBUG [main] - ooo Connection Openeddebug [main] -==> Executing:insert I

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N_hidden:number of hidden Units:type n_out:int:p Aram N_out:number of output units, the dimension of the space in Which the labels lie "" "# Since We is dealing with a one hidden layer MLP, this would translate # I Nto a hiddenlayer with a Tanh activation function connected to the # logisticregression layer; The activation function can be replaced by # sigmoid or any other nonlinear function Self.hiddenlayer = Hidd Enlayer (RNG=RNG, InpuT=inpu

(1001, ' Zhang San ', ' Male ', to _date (' 1989-12-2 ', ' yyyy-mm-dd '), 3001); INSERT into student values (1002, ' Harry ', ' Female ', to_date (' 1991-6-21 ', ' yyyy-mm-dd '), 3001); INSERT into student values (1003, ' Zhao Liu ', ' Female ', to_date (' 1990-1-15 ', ' yyyy-mm-dd '), 3001); INSERT into student values (10 04, ' Tianqi ', ' Male ', to_date (' 1992-11-25 ', ' yyyy-mm-dd '), 3002); insert into classes values (3001, ' 1103 ', 5001); Insert I N