然后,在SQL查询中使用该函数: 代码语言:sql 复制 SELECT column1, column2, dbo.ConcatenateStrings('Hello', 'World') AS ConcatenatedString FROM your_table 在上面的示例中,dbo.ConcatenateStrings('Hello', 'World')调用了我们创建的函数,并将其返回的字符串值作为查询结果的一部分。你可以将your_table替换为...
SELECT dbo.ConcatenateStrings(ColumnName) AS AggregatedString FROM YourTable WHERE SomeCondition; 总结 在SQL Server 旧版中,字符串聚合可以通过FOR XML PATH或自定义聚合函数实现。尽管这些方法可能不如新版本中的STRING_AGG函数简洁高效,但它们仍然能够有效地处理字符串聚合的需求。选择合适的方法取决于具体的应用...
(self IN OUT t_clob_agg, value IN clob) RETURN NUMBER IS BEGIN -- Concatenate string only when not already existing in the list (=unique) SELF.g_string := self.g_string || ',' || value; RETURN ODCIConst.Success; END; MEMBER FUNCTION ODCIAggregateTerminate(self IN t_clob_agg, ...
' ')"/><delimiter query=","/><limit query="LIMIT %d,%d"/><limitregexp query="\s+LIMIT\s+([\d]+)\s*\,\s*([\d]+)"query2="\s+LIMIT\s+([\d]+)"/><limitgroupstart query="1"/><limitgroupstop query="2"/><limitstring query=" LIMIT ...
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Compress Large String to Small Length Compressing and decompressing files and images to and from an SQL Server Database table COmputer Serial Number Concatenate Strings from two-dimensional array Concatenate Strings In ForEach Loop Concatenate, save, and read file streams Concatenating 2 strings to cre...
public void Merge(Concatenate other) { intermediateResult.Append(other.intermediateResult); } /// /// Called at the end of aggregation, to return the results of the aggregation /// /// <returns></returns> public SqlString Terminate() { string output = ...
Concatenate concatenate(stringConstant("Name: ", column1) 'Name: ' || column1 Divide divide(column1, column2, constant(55)) column1 / column2 / 55 Lower lower(column1) lower(column1) Multiply multiply(column1, column2, constant(55)) column1 * column2 * 55 OperatorFunction applyOperator...
virtual_column FILLER, --跳过由 PL/SQL Developer 生成的第一列序号 user_id "user_seq.nextval", --这一列直接取序列的下一值,而不用数据中提供的值 user_name "'Hi '||upper(:user_name)",--,还能用SQL函数或运算对数据进行加工处理 login_times terminated by ",", NULLIF(login_times='NULL')...
Concatenate multiple strings.One of the most basic and frequently needed operations on strings is to combine or concatenate them together. PL/SQL offers two ways to do this: The CONCAT built-in function The || (concatenation) operator