This SQL tutorial explains how to use the SQL MIN function with syntax and examples. The SQL MIN function is used to return the minimum value of an expression in a SELECT statement.
row_number()、lag()、lead()等；聚合函数，如：count()、sum()、avg()、min()、max()等。
Themin()function returns the one value in the sequence that is smaller than any other in the input sequence. For xs:string values, the default Unicode Codepoint Collation is being used. If an xdt:untypedAtomic value cannot be cast to xs:double, the value is ignored in the input sequence...
SELECT MIN(ord_date) AS "Min Date": This is the main part of the SQL query. It uses the MIN() function to calculate the minimum value of the 'ord_date' column in the 'orders' table. The result will be a single value representing the minimum date. The AS keyword is used to renam...
大家好,又见面了,我是你们的朋友全栈君。 SQL语句大全 –语 句功能 –数据操作 SELECT –从数据库表中检索数据行和列 INSERT –向数据库表添加新数据行 DELETE –从数据库表中删除数据行 UPDATE –更新数据库表中的数据 -数据定义 CREATE TABLE –创建一个数据库表
Learn about the XQuery function string() that returns the value of its argument represented as a string.
print();}//定义一个类当做累加器，并声明第一和第二这两个值public static class vCTop2 {public Integer first = Integer.MIN_VALUE;public Integer second = Integer.MIN_VALUE;}//自定义UDATF函数（多进多出）,求每个WaterSensor中最高的两个水位值public static class Top2 extends TableAggregateFunction...
SQLRETURN SQLGetInfo( SQLHDBC ConnectionHandle, SQLUSMALLINT InfoType, SQLPOINTER InfoValuePtr, SQLSMALLINT BufferLength, SQLSMALLINT * StringLengthPtr); 参数 ConnectionHandle [输入] 连接句柄。 InfoType [输入]信息类型。 InfoValuePtr [输出]指向要在其中返回信息的缓冲区的指针。 根据所请求的 InfoT...
CREATEVIEWvwap_1mAS(SELECTsymbol,TUMBLE_START(event_time,INTERVAL'1'MINUTES)ASstart_time,TUMBLE_ROWTIME(event_time,INTERVAL'1'MINUTES)ASrow_time,MAX(price)ASmax_price,MIN(price)ASmin_price,SUM(price*vol)AStotal_price,SUM(vol)AStotal_vol,SUM(price*vol)/SUM(vol)ASvwapFROMtradesGROUPBYTUMBLE(...
STRING_AGGis an aggregate function that takes all expressions from rows and concatenates them into a single string. Expression values are implicitly converted to string types and then concatenated. The implicit conversion to strings follows the existing rules for data type conversions. For more informa...