There are standard algorithms for measuring string-distances, but we’ll need a few extra steps to make this work efficiently against a database.. Measuring String Distance Let’s start with a simple problem. Suppose the user searches for a customer, and we have some candidates to compare. W...
cosine_similarity(x,y) 返回稀疏向量x和y之间的余弦相似度。 degrees 把弧度转化为度。 e() 返回自然常数。 exp(x) 返回自然常数的指数。 floor(x) 返回x向下最接近的整数。 from_base(string,radix) 以radix进制解释string。 ln(x) 返回自然对数。 log2(x) 返回以2为底,x的对数。 log10(x) 返回以...
gsql:runMe.sql:139: NOTICE: | find_in_set('x', string_to_array('', ',')) | | = 0 | 2021-12-07 07:46:32 | gsql:runMe.sql:139: NOTICE: | find_in_set('', string_to_array('a,b,c,, ... | | = 4 | 2021-12-07 07:46:32 | gsql:runMe.sql:139: NOTICE: | isn...
Example 3: SQL IIF statement to compare two stringsIn the following example, we want to compare the string data using SQL IIF statement. We want to know the person liking based on the person name. 1 2 DECLARE @Person Varchar(100) = 'Raj' SELECT IIF(@Person='Raj','Likes Apple','...
we need to compare that embedding with what we have in our customer reviews, which we’ve already converted to embeddings. This is a fairly complex query and I’m using a combination now of the vector-embedding search using the distant function to find cosine similari...
date_parse(string, format) 格式说明 时间段对齐函数 按照秒、分钟、小时、日、月、年等进行对齐 date_trunc(unit,x) 1. x是一个timestamp类型,也可以是unix time date_trunc只能按照固定时间间隔统计 *|select date_trunc('minute' , __time__) as t, ...
EventDeclarationCompareFunctionParameter 表示事件宣告述詞參數 EventDeclarationSetParameter 表示事件宣告集參數 EventGroupContainer 表示事件種類 EventNotificationObjectScope 表示事件通知的範圍。 EventRetentionSessionOption 代表EVENT_RETENTION_MODE會話選項 EventSessionObjectName 表示CREATE 和 ALTER EVENT SESSION ...
Predicate functions shouldn't compare concatenated strings with NULL, because this behavior is affected by the SET CONCAT_NULL_YIELDS_NULL (Transact-SQL) option. Security note: side-channel attacks Malicious security policy manager It's important to observe that a malicious security policy manager, ...
Champ DTS_E_MSMQTASK_STRING_COMPARE_VALUE_MISSING Champ DTS_E_MSMQTASK_STRING_MSG_TO_VARIABLE_NOT_FOUND Champ DTS_E_MSMQTASK_TASK_TIMEOUT Champ DTS_E_MSMQTASK_VARIABLE_TO_RECEIVE_STRING_MSG_EMPTY Champ DTS_E_MULTICACHECOLMAPPINGS Champ DTS_E_MULTIPLECACHEWRITES Champ DTS_E_MULTIPLEFILESONRET...
()).analyze) comparePlans(actual, correctAnswer) } private val trueBranch = (TrueLiteral, Literal(5)) private val normalBranch = (NonFoldableLiteral(true), Literal(10)) private val unreachableBranch = (FalseLiteral, Literal(20)) private val nullBranch = (Literal.create(null, NullType), ...