WHEREcolumn_name operatorANY (SELECTcolumn_name FROMtable_name WHEREcondition); Note:Theoperatormust be a standard comparison operator (=, <>, !=, >, >=, <, or <=). The SQL ALL Operator TheALLoperator: returns a
In SQL, the ANY and ALL operators are used to compare values in a subquery. In this tutorial, you will learn about the SQL ANY and ALL operators with the help of examples.
逻辑运算符对某些条件进行测试,以获得其真实情况。 逻辑运算符和比较运算符一样,返回带有 TRUE、FALSE 或 UNKNOWN 值的布尔数据类型。 运算符含义 ALL如果一组的比较都为 TRUE,那么就为 TRUE。 AND如果两个布尔表达式都为 TRUE,那么就为 TRUE。 ANY如果一组的比较中任何一个为 TRUE,那么就为 TRUE。
To create a negative condition, you can precede any of these conditional operators, except for ANY and ALL, with the NOT operator. 3.1:BETWEEN value-1 AND value-2 ( between or equal to 两端的value是被包括进去的) To select rows based on a range of numeric or character values(value可以使...
SQL Logical Operators OperatorDescriptionExample ALLTRUE if all of the subquery values meet the conditionTry it ANDTRUE if all the conditions separated by AND is TRUETry it ANYTRUE if any of the subquery values meet the conditionTry it
Query Operators - 查询算子主要完成如图的Query Logic,目前支持了Union,Join,Projection,Difference, Intersection以及window等大多数传统数据库支持的操作。 Sink Operator - Sink operator 是对外结果表的抽象,目前Apache Flink也内置了很多常用的结果表的抽象,比如上图提到的Kafka。
If any of the preceding events occurs, GaussDB(DWS) will record the time when the statistics are reset. You can query the time using the get_node_stat_reset_time function. pgxc_parallel_query(text, text) Description: Runs a specified SQL query statement on a data instance of a specified ...
SQL_CN_ANY = 相关名称受支持,可以是任何有效的用户定义名称。SQL-92 符合入口级别的驱动程序将始终返回SQL_CN_ANY。 SQL_CREATE_ASSERTION 3.0 SQLUINTEGER 位掩码,枚举数据源支持的 SQL-92 中 CREATE ASSERTION 语句中的子句。以下位掩码用于确定支持哪些子句:SQL_CA_CREATE_ASSERTION如果支持显式指定约束属性的...
Note:For the purposes of a union query, the Number and Text data types are compatible. When you use the UNION operator, you can also specify whether the query results should include duplicate rows, if any exist, by using the ALL key word. ...
(conf)::SpecialLimits::Aggregation::Window::JoinSelection::InMemoryScans::BasicOperators::Nil)/** * Override to add extra planning strategies to the planner. These strategies are tried after * the strategies defined in [[ExperimentalMethods]], and before the regular strategies. */def extra...