在动态SQL中,Oracle的LENGTH函数可以用于获取字符串的长度。以下是一个示例动态SQL语句,使用LENGTH函数来获取一个字符串的长度: DECLARE v_string VARCHAR2(50) := 'Hello World'; v_length NUMBER; BEGIN EXECUTE IMMEDIATE 'SELECT LENGTH(:1) FROM DUAL'
--Count the length of stringselectlengthb('select * from scott.emp')ascountted_by_byte, length('select * from scott.emp')ascountted_by_charfromdual;--For some character encoding, the length() and the lengthb() is same in english--you may use this feature to check whether the string ...
CREATEORREPLACEFUNCTIONget_max_department_bit_lengthRETURNNUMBERASv_max_length NUMBER :=0;v_bit_length NUMBER;BEGINFORdeptIN(SELECTdepartment_nameFROMdepartments)LOOPv_bit_length :=LENGTHB(dept.department_name)*8;-- Multiply by 8 to get the number of bitsIFv_bit_length>v_max_lengthTHENv_max_...
Oracle Example: -- Get the length of string (returns 5)SELECTLENGTH('Spain')FROMdual; SQLServer Example: -- Get the length of string (returns 5)SELECTLEN('Spain'); LENGTH Conversion Overview Oracle LENGTH toSQLServer conversion summary: ...
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The Oracle/PLSQL LENGTH function returns the length of the specified string.Syntax The syntax for the LENGTH function in Oracle/PLSQL is: LENGTH( string1 ) Parameters or Arguments string1 The string to return the length for.Returns The LENGTH function returns a numeric value. If string1 is ...
前文回顾:巧用SQL:oracle pl/sql split函数 看完上次的分享, 我很有感触,在软件开发过程中经常会出现按照某个字符进行分割字符串的情形,在网上也有很多这样的方法,我收集了下并对他们做了下汇总和验证。文章以‘,’(英文逗号)分割为例,另外设想传入的字符串为未知变量,书写通用的sql进行说明和演示 ...
1、LENGTH( string1 )2、LENGTHB( string1 ) 在oracle中,这两个函数都有差不多意思,最大的区别在于:length 求得是字符长度,lengthb求得是字节长度。 在了解这些之后,看些例子就明白了 --查询姓名 select colName1 as 编号, colName2 as 姓名 from tableName; ...
The function is called LENGTH in Oracle, MySQL, and Postgres, and it's called LEN in SQL Server. Oracle has several variants of the LENGTH function, which are the same as the basic LENGTH function – to find the length of a specified string. ...
Name LENGTH, LENGTHB, LENGTHC, LENGTH2, and LENGTH4 Synopsis The LENGTH family of functions returns the length of a string. The length can be returned in any of the following units: … - Selection from Oracle PL/SQL Programming, Third Edition [Book]