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
The only way that I know of to get a SUBSTR from a LONG variable is towrite a PL/SQL procedurethat takes a ROWID, then converts that to a 32k variable, and returns 4000 characters to SQL, which can then be used for the SUBSTR function. This is described inmore detail here. SUBSTR ...
SQL中Rigth对应Oracle Substr Sql: SELECT RIGHT('1251565215',3) --'215' Oracle: SELECT SUBSTR('1251565215',-3) FROM DUAL; --'215 起始位置为负数就是right功能substr('1234567890',-3),返回的就是右边3位当然也可以用下面的写法,不过推荐用-3 SELECT SUBSTR('1251565215',LENGTH('1251565215')-2) FRO...
SUBSTR(string,start_position,[length]) 1. 其中,string是要进行操作的原始字符串,就像雕刻家面前的整块璞玉;start_position表示提取的起始位置,决定从何处下刀;length为可选参数,指定提取子字符串的长度,如果省略,就会从起始位置一直提取到字符串的末尾。
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...
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. ...
sql oracle-sqldeveloper regexp-replace 我在列中有下面的字符串值,需要提取最后一个数值。我使用了SUBSTR(ColumnA, -1, 1),但这只是提取最后一个数字。 以下是预期结果发布于 9 月前 ✅ 最佳回答: 将REGEXP_SUBSTR与模式[0-9]+$一起使用: SELECT ColumnA, REGEXP_SUBSTR(ColumnA, '[0-9]+$') ...
Examples Suppose, we have the following string: 'This is a regexp_substr demo' Code language: SQL (Structured Query Language) (sql) If you want to get the fourth word of the above string, you use the REGEXP_SUBSTR() function as follows: SELECT regexp_substr( 'This is a regexp_subst...
“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的迁移...