for循环是一种重复控制结构,允许您有效地编写需要执行特定次数的循环。 考虑一个商业案例,其中,我们需要一次处理或更新100条记录。 这是Loop语法有助于简化工作的地方。 语法(Syntax) for (variable : list_or_set) { code_block } 流程图 例子(Example) 考虑到我们有一个Invoice对象,它存储CreatedDate,Status等...
Consider the following for loop example using SOQL for loop.// The same previous example using For SOQL Loop List<apex_invoice__c> PaidInvoiceNumberList = new List<apex_invoice__c>(); // initializing the custom object records list to store // the Invoice Records List<string> InvoiceNumber...
for (variable_list : [soql_query]) { code_block } 这里需要注意的一点是,variable_list或变量应始终与Query返回的记录的类型相同。 在我们的示例中,它与APEX_Invoice_c的类型相同。 流程图 (Flow Diagram) 例子(Example) 使用SOQLfor循环考虑以下for loop示例。 // The same previous example using For SOQ...
0 - This is a modal window. No compatible source was found for this media. Return to Step 2. As another example, the following code outputs the numbers 1 100 into the debug log. Note that an additional initialization variable, j, is included to demonstrate the syntax: ...
You can add one or more of these properties to a small initialization function like the one below, adding whichever ones you need separated by commas. You would define this on theAttributestab of the interactive grid region. For example, to enable a selection state item in a grid with multi...
在这篇博客里,瓦砾会详解一下混合精度计算(Mixed Precision),并介绍一款Nvidia开发的基于PyTorch的混合精度训练加速神器--Apex,最近Apex更新了API,可以用短短三行代码就能实现不同程度的混合精度加速,训练时间直接缩小一半。 话不多说,直接先教你怎么用。
For example, variable declaration, loop syntax and conditional statements all work the same in Apex as they do in Java. Based in Data Apex is data-focused and designed to execute multiple queries and DML (Data Manipulation Language) statements at the same time. Strongly Typed Apex ...
that the limit on heap size is exceeded and an error occurs. to resolve, use a soql query for loop instead, since it can process multiple batches of records by using internal calls to query and querymore . for example, if the results are too large, this syntax causes a runtime ...
# 切换到root用户/ Change to root user sudo su - # OUTPUT GPIO_C为例/ OUTPUT GPIO_C as example: # 输出高电平/Output high-level voltage: echo 1 > /sys/class/gpio/PM.03/value # 输出低电平/ Output low-level voltage: echo 0 > /sys/class/gpio/PM.03/value # INPUT GPIO_A为例/ IN...
contents, use their tostring methods. variables declared within a loop are visible outside of the loop. drill into variables to see their children’s values. for example, if you run the query [select id, contactid, contact.accountid, contact.account.ownerid from case] , your results are...