Last Updated: July 3, 2022 by Chaitanya Singh | Filed Under: DBMS In this article, you will learn the various operators that can be used in SQL queries. Operators in SQL can be categorised as follows: Arithmetic operator Comparison operator Logical operator 1. SQL Arithmetic Operators Operator...
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有关SELECT 语句中关系联接运算符支持的信息(由 SQL-92 定义),请参阅SQL_SQL92_RELATIONAL_JOIN_OPERATORS。 SQL_ORDER_BY_COLUMNS_IN_SELECT 2.0 字符串:“Y”如果 ORDER BY 子句中的列必须位于选择列表中,则为“Y”;否则为“N”。 SQL_PARAM_ARRAY_ROW_COUNTS 3.0 一个SQLUINTEGER,用于枚举驱动程序的属性...
set operators UNION, UNION ALL, INTERSECT, and MINUS 这三个操作符优先级相同,从左至右,除非有括号 单库单表操作,单库多表操作,多库多表操作(用到dblink) transcendental function 超越函数,如:sin,cos,tan等 函数相似于操作符,它们都维护数据项并返回结果,在参数格式上又不同于操作符 没有任何参数的函数与...
(四) Set- Comparison Operators 集合比较操作符 1. 集合比较操作符: ·IN 用于比较一个值是否在一个列表中,它通常用于WHERE子句中 如果指定字段的值匹配列表中的任意一个值,结果就为“TRUE” SELECT*FROMtable_nameWHEREcolumn_nameIN(value1,value2,...); ...
In this limited training period, you will acquire hands-on experience and strong core basics to advanced concepts deeply in various concepts namely SQL architecture, types of databases, the relationship between the client/server, methods to deploy various functions, operators to design relational ...
Set operators can be the part of sub queries. Set operators can't be used in SELECT statements containing TABLE collection expressions. The LONG, BLOB, CLOB, BFILE, VARRAY,or nested table are not permitted for use in Set operators.For update clause is not allowed with the set operators.UNIO...
如需SELECT 語句中關係型聯結運算符支援的相關信息,如 SQL-92 所定義,請參閱SQL_SQL92_RELATIONAL_JOIN_OPERATORS。 SQL_ORDER_BY_COLUMNS_IN_SELECT 2.0 字元字串:如果 ORDER BY 子句中的數據行必須位於選取清單中,則為 “Y”,否則為 “N”。 SQL_PARAM_ARRAY_ROW_COUNTS 3.0 SQLUINTEGER 列舉驅動程式屬性...
SQL_PRED_BASIC if the column can be used in aWHEREclause with all the comparison operators exceptLIKE. (This is the same as the SQL_EXCEPT_LIKE value in ODBC 2*.x*.) SQL_PRED_SEARCHABLE if the column can be used in aWHEREclause with any comparison operator. ...
SQL_PRED_BASIC if the column can be used in aWHEREclause with all the comparison operators exceptLIKE. (This is the same as the SQL_EXCEPT_LIKE value in ODBC 2*.x*.) SQL_PRED_SEARCHABLE if the column can be used in aWHEREclause with any comparison operator. ...