In Standard SQL, there are three main methods to determine the length of a string. SQL Byte Length Function The first method you can use to determine the length of a string is thebyte_lengthfunction. This function takes the string as the input parameter and returns the length of the string...
string upper(string A) ucase(string A) 转为大写 string initcap(string A) 首字母大写日期函数 部分日期函数需要较高的版本支持,因此有的函数虽然好用,但需要先校验一下是否可用。 在做日期计算时,建议先将日期转为月初/年初计算(使用trunc函数即可),最后再进行截取操作,因为截取后的日期无法被识别为日期,在后...
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
5. format_string / printf 格式化字符串:format_string(strfmt, obj, ...) -- returns a formatted string from printf-style format strings select format_string("Spark SQL %d %s", 100, "days"); 1. 2. 6. initcap / lower / upper initcap:将每个单词的首字母转为大写,其他字母小写。单词之间以...
SQLCODE '= 0 { w !,"Error code ",SQLCODE } else { w !,"The input string: ",a w !,"Number of characters: ",a1 w !,"Number of substrings: ",a2 } } DHC-APP>d ##class(PHA.TEST.SQLCommand).Length1() The input string: HELLO WORLD Number of characters: 11 Number of sub...
Db2 provides the default for a security label column. If a value is not specified after the DEFAULT keyword, the default value depends on the data type of the column: Data Type Default Value Numeric 0 Fixed-length character or graphic string Blanks Fixed-length binary string Hexadecimal zeros ...
For varchar and char, the length of a character string is the number of bytes. For nvarchar and nchar, the length of the character string is the number of byte-pairs. The length for binary, varbinary, and image data types is the number of bytes. For example, an int data type can ...
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]
/// d ##class(PHA.TEST.SQLCommand).Length1()ClassMethodLength1(){s a="HELLO WORLD"s b=" "&sql(SELECT$LENGTH(:a),$LENGTH(:a,:b)INTO:a1,:a2)ifSQLCODE'=0{w!,"Error code ",SQLCODE}else{w!,"The input string: ",a w!,"Number of characters: ",a1 ...
LENGTH(str) For example, to find the length of the name 'Jones', you will write the function as so: SELECTLENGTH('Jones') The return value is 5. 4. UPPER() This function changes all the characters in a string to uppercase. It's also known as UCASE() in some databases. The synta...