After the exception handling block, there is an IF statement that checks whether v_department_name is NULL. If it is NULL, the v_result variable is also set to NULL. Otherwise, the SUBSTR function extracts the first five characters of v_department_name, and that value is assigned to v_r...
SQL> select substr('abc', -2, 2) from dual; SUBSTR('ABC',-2,2) --- bc
substr('TechOnTheNet', -6, 3) would return 'The' substr('TechOnTheNet', -8, 2) would return 'On' In oracle/PLSQL, the substr functions allows you to extract a substring from a string. The syntax for the substr function is: substr( string, start_position, [ length ] ) 说明: s...
Oracle/PLSQL:SUBSTR Function This Oracle tutorial explains how to use the Oracle/PLSQLSUBSTR functionwith syntax and examples. Description The Oracle/PLSQL SUBSTR functions allows you to extract a substring from a string. Syntax The syntax for the SUBSTR function in Oracle/PLSQL is: ...
Can I Use Oracle SUBSTR with a LONG? No, unfortunately, youcan’t perform this function on a LONG. According to Oracle, from version 8.0 you should be using the CLOB data type instead. The only way that I know of to get a SUBSTR from a LONG variable is towrite a PL/SQL procedure...
Examples Let’s see the following example: SELECTSUBSTR('Oracle Substring',1,6)SUBSTRINGFROMdual;Code language:SQL (Structured Query Language)(sql) In this example, theSUBSTR()function returns a substring whose length is 6 starting from the beginning of the main string. ...
将source字符串中匹配pattern的子串替换成指定字符串后返回，当输入source, pattern, occurrence参数为NULL...
將SUBSTR 函式呼叫轉換為 SUBSTRING 函式呼叫 SSMA 可以根據參數數目,將 Oracle SUBSTR 函式呼叫轉換成 SQL Server substring 函式呼叫。 如果 SSMA 無法轉換 SUBSTR 函式呼叫,或不支援參數數目,SSMA 會將 SUBSTR 函式呼叫轉換成自訂 SSMA 函式呼叫。如果您選取 [是],SSMA 會將使用三個參數的 SUBSTR 函式呼叫...
“项目设置”对话框的“转换”页面包含一些设置,用来自定义 SSMA 如何将 Oracle 语法转换为 SQL Server 语法。 “项目设置”和“默认项目设置”对话框中提供了“转换”窗格: 要指定用于所有 SSMA 项目的设置,请在“工具”菜单上单击“默认项目设置”,从“迁移目标版本”下拉列表中选择需要为其查看或更改设置...