(1 row(s) affected) oracle中 --左取两个字符 SQL> select substr('abc', 1, 2) from dual; SUBSTR('ABC',1,2) --- ab --右取两个字符 SQL> select substr('abc', -2, 2) from dual; SUBSTR('ABC',-2,2) --- bc
SQL 中的 substring 函数是用来抓出一个栏位资料中的其中一部分。这个函数的名称在不同 的数据库中不完全一样: MySQL: SUBSTR(), SUBSTRING() Oracle: SUBSTR() 最常用到的方式如下 (在这里我们用SUBSTR()为例): SUBSTR(str,pos): 由<str>中,选出所有从第<pos>位置开始的字符。请注意,这个语法不适 用...
create or replace function getclob( table_name in varchar2, field_id in varchar2, field_name in varchar2, v_id in number, v_pos in number) return varchar2 is lobloc clob; buffer varchar2(32767); amount number := 2000; offset number := 1; query_str varchar2(1000); begin query_st...
SUBSTRING_INDEX(str,delim,count) 语法格式说明 str:需要操作的字符串 delim:分隔符 count:匹配 delim 出现的次数,可正数可负数 栗子一 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SELECTSUBSTRING_INDEX('www.mysql.com','.',1);# wwwSELECTSUBSTRING_INDEX('www.mysql.com','.',-1);# comSELEC...
在PGSQL中模拟MySQL的substring_index 、、 我想找到一种优雅的方法来在Postgres中模拟MySQL的函数的行为。在MySQL中,这很简单:Query OK, 0 rows affected (0.01(test, '||', 1) as field1, substring_index(test, '||', -1) as field2 from tes 浏览0提问于2013-10-08得票数 11 回答已采纳 ...
SQLリファレンス・ガイド Database/ Other Databases/ NoSQL Database/ Release 23.3 SQLリファレンス・ガイドタイトルおよび著作権情報 1 SQL for Oracle NoSQL Databaseの概要 2 Oracle NoSQL Databaseデータ・モデル 3 ネームスペース管理 4 リージョン管理 5 表管理 6 SQL問合せ管理 7...
The Oracle substr function for substrings The substr function is a function that returns a substring from a string. syntax substr([input],[start],[length]) or substr([input],[start]) or With input the String to take a substring from, start is the starting position where 1 is the fi...
SELECTSUBSTR('Oracle Substring',1,6)SUBSTRINGFROMdual;Code language:SQL (Structured Query Language)(sql) Try it In this example, theSUBSTR()function returns a substring whose length is 6, starting from the beginning of the input string. ...
Example 2: Use SUBSTRING within T-SQL Query I have created a sample table named “IPDREGISTRATION” in the VSData database. In the table, there is a column named “IPDREGNO,” which represents patients’ registration number. The IPDREGNO is a unique number and its format is <IP> <Financ...
0 Kudos 26,766 SAP Managed Tags: ABAP Development Hi Experts, Can i use the similar SQL statement as below in ABAP SQL or something as it ? SELECT * FROM table where substring (field,1,1) = 'B' Thanks in advance MartinReply ...