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' INTO v_length USING v_string; DBMS_OUTPUT.PUT_LIN...
Oracle / PLSQL函数 - LENGTH和LENGTHB 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; --...
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Master SQL LENGTH to measure the number of characters in a string. Discover syntax and examples for retrieving string lengths in SQL queries.
In Oracle, LENGTH function returns the length of a string in characters as defined by the input character set. In SQL Server, you can use LEN function, but note that it excludes trailing blanks. When applied to a CHAR or NCHAR column, Oracle LENGTH ret
The LENGTHB functionis supported for single-byte LOBs only. It cannot be used with CLOB and NCLOB datain a multibyte character set. Examples The followingexample uses the LENGTH function using a single-byte databasecharacter set: SELECT LENGTH('CANDIDE') "Length incharacters" FROM DUAL; ...
Learn about the LengthB function in Oracle PL/SQL, which calculates the bit length of strings. Explore code examples that demonstrate the usage of LengthB in different scenarios, such as calculating the bit length of employee names, job IDs, and departme
TheLENGTHBfunctionis supported for single-byte LOBs only. It cannot be used withCLOBandNCLOBdatain a multibyte character set.Examples The followingexample uses theLENGTHfunction using a single-byte databasecharacter set:SELECT LENGTH('CANDIDE') ";Length incharacters"; FROM DUAL;Length in characters ...
Examples The followingexample uses the LENGTH function using a single-byte databasecharacter set: SELECT LENGTH('CANDIDE') "Length incharacters" FROM DUAL; Length in characters --- 7 The next example assumes a double-bytedatabase character set. SELECT LENGTHB ('CANDIDE')...
Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i Example Let's look at some Oracle LENGTH function examples and explore how to use the LENGTH function in Oracle/PLSQL. For example: LENGTH(NULL)Result:NULL LENGTH('')Result:NULL LENGTH(' ')Result:1 LENGTH('Tech on the Net')Res...