【OracleDB】 05 单行函数 Single-Row Functions 单行函数 Single-Row Functions 特点: - 1、操作数据对象 - 2、接受参数返回一个结果 - 3、只对一行进行变换 - 4、每行返回一个结果 - 5、可以转换数据类型 - 6、可以嵌套 - 7、参数可以是一列或一个值 语法公式: function_name[(arg1, arg2,...)] ...
SQL Fundamentals: Using Single-Row Functions to Customize Output使用单行函数自定义输出 SQL Fundamentals || Single-Row Functions || 字符函数 character functions SQL Fundamentals || Single-Row Functions || 数字函数number functions SQL Fundamentals || Single-Row Functions || 日期函数date functions SQL F...
SQL Fundamentals || Oracle SQL语言 SQL Fundamentals: Using Single-Row Functions to Customize Output使用单
SQL - Using Single-Row Functions QuestionsPrevious Quiz Next 1. What will be the outcome of the following query?SELECT ROUND(144.23,-1) FROM dual;140 144 150 100Answer: A. The ROUND function will round off the value 144.23 according to the specified precision -1 and returns 140....
Single-row functions return a single result row for every row of a queried table or view. These functions can appear in select lists, WHERE clauses, START WITH and CONNECT BY clauses, and HAVING clauses. Numeric Functions Numeric functions accept numeric input and return numeric values. Mo...
Single讲义-Row Functions ppt课件 Single-RowFunctionsppt课件 精品 THANKS
Single-row functions return a single result row for every row of a queried stream or view. For more information, seeSection 1.1.11, "Functions". 8.1Introduction to Oracle CQL Built-In Single-Row Functions Table 8-1lists the built-in single-row functions that Oracle CQL provides. ...
Aggregate Functions operate on a group of rows at one time and return a single row. Object reference functions manipulate the value in columns with the REF datatype in object tables. Single-row functions add a great deal of power to queries. Functions are suggested to be used in the SELECT...
Single row functions can be used in SELECT statement, WHERE and ORDER BY clause.Single-row functions are used to manipulate data items. They accept one or more arguments and return one value for each row that is returned by the query....
Sql_74_Sql_Coalesce_Function_In_Oracle_Database_Manish_Sharma Sql_73_Nvl2_Sql_Null_Function_By_Manish_Sharma_Rebellionrider Sql_72_Nvl_Sql_Null_Function_By_Manish_Sharma_Rebellionrider Sql_71_Lpad_And_Rpad_Sql_Function_By_Manish_Sharma_Rebellionrider Sql_69_Intersect_And_Minus_Sql_Set_Operators...