The bulk collect clause will batch retrieve the results, that is, bind the result set to a collection variable at a time, and send the results from the SQL engine to the PL/SQL engine. Generally,Use bulk collect in the fetch into and returning into
1. If an expression conflicts with a delimiter or placeholder, you can use the "\" symbol@ for in users) {e-mail is ${user.name}\@ 163. com@}${[// output a JSON list ${{key:1,value:2 \} // output a JSON map,} need to add \The temporary variable
18.2.1 MySQL server has gone away errors related to Lost connection to server during query.
The most common cause of the MySQL server has gone away error is that the server times out and closes the connection. By default, if nothing happens, the
1. Goto: jump to a specified Frame)
Scene: Specifies Scene
Frame: Number, Label, Expression, Next Frame, and Previous Frame. You can select the Number and Label of the Frame. The Expression is used to indicate the Next Frame and the Previous
Power shell provides the definition function for user variables.
Variables do not need to be declared first (of course, they are in uniformity. For some global variables, we recommend that you declare them first and assign values). The variable
Author: Zeng Jin (qq: 310575)Recently, I was busy with the company's BI software performance tests. These days I mainly tested the concurrency and Stability of PA under ROLAP in CUBE.Involving tables and dimensions, Cube: fact table sales_fact_1997,
Today I will share with you the usage of closures in swift. I personally think closures are short for functions. If you are not familiar with functions, please refer to the Quick Start article-Functions
1: Function Type
Var variable of function
IIS + PHP + MySQL + Zend Optimizer + GD library + phpMyAdmin installation configuration [complete revision of Ultimate Edition]
I. Software preparation: The following are the latest official versions as of March 20, and are also valid for a long
MySQL stored procedures and triggers
I. Stored Procedure
The basic format of the stored procedure is as follows:
-- Declare the Terminator-- Create a stored procedureDELIMITER $ -- declare the end of the stored procedureCreate procedure pro_test () -
Mysql command line parameters, python command line parameters
1. mysql command line parameters
Usage: mysql [OPTIONS] [database] // command Method-?, -- Help // display help information and exit-I, -- help // display help information and exit-- Auto-
I. Column file list
1. List
(GDB) List line1, line2
Ii. ExecutionProgram To run the program to be debugged, run the Run Command, followed by any parameters sent to the program, including standard input and standard output specifiers () and shell
A more detailed doscommand description 1 echo and @ Echo command @ # Close single-line echo off # Close echo from the next line @ echo off # Close echo from the beginning of this line. Generally, the first line of batch processing is the echo on #
As a built-in and most commonly used debugger, GDB is obviously irrefutable. Familiar with GDB is like all Linux developers suggest using vim, which is a "strange" plot.
Source code for testing.
#include int test(int a, int b){ int c = a + b;
I. Optimizing mysql during compilation
If you distribute and install mysql from the source code, note that the compilation process will have an important impact on the future target program. Different compilation methods may obtain similar target
Setting of a long-term environment variable1.2.3.4.5.will "%javac Path% ; "On the leftmost side of the variable value, click OKTo prevent accidental deletion of the environment variables of the system, the following settings can be
${#variable} Returns the length of the $string${variable:position} in $string, start extracting substrings from position $position${variable:position:length} in $string, start extracting substrings of length $length from the position
After changing the password of MySQL5, you cannot log on to the system. the following description is only available in other Windows systems. I have not tried it. Mysql has changed the format of the user password since 4.1.1, A new verification
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