Linq-to-SQL查询中的String.Split? Linq-to-SQL是一种用于在.NET应用程序中进行数据库查询和操作的技术。String.Split()是一个C#中的字符串方法,用于将字符串按照指定的分隔符拆分成子字符串数组。 在Linq-to-SQL查询中使用String.Split()方法可以实现对数据库中的字符串字段进行拆分操作。例如,假设有一个包含多...
CREATEFUNCTION[dbo].[SplitString](@ListNVARCHAR(MAX),@DelimiterNVARCHAR(255) )RETURNSTABLEWITHSCHEMABINDINGASRETURN(SELECTItem=y.i.value('(./text())[1]','nvarchar(4000)')FROM(SELECTx=CONVERT(XML,''+REPLACE(@List,@Delimiter,'')+'').query('.') )ASaCROSSAPPLY x.nodes('i')ASy(i) );...
-- 创建一个示例表 CREATE TABLE ExampleTable ( ID INT, Names VARCHAR(100) ); -- 插入示例数据 INSERT INTO ExampleTable (ID, Names) VALUES (1, 'apple,banana,orange'), (2, 'cat,dog,rabbit'), (3, 'red,green,blue'); -- 查询并组合string_split列结果 SELECT ID, Names, STUFF((SELECT...
SELECTProductId,Name, TagsFROMProductWHEREEXISTS(SELECT*FROMSTRING_SPLIT(Tags,',')WHEREvalueIN('clothing','road')); E. Find rows by list of values Developers must create a query that finds articles by a list of IDs. They can use following query: ...
CROSS APPLY STRING_SPLIT(Interests, ',') ) x PIVOT ( MAX(Interest) FOR rn IN ('+@cols+') ) p';EXECsp_executesql@query; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. ...
SqlCommand command = new SqlCommand(query, connection); // 可变数量的参数值 List<int> parameterValues = new List<int> { 1, 2, 3, 4, 5 }; // 构建参数化查询参数 string parameterName = "@Values"; string valueList = string.Join(",", parameterValues.Select((_, i) => $"{parameterNa...
SET@slice=@String IF(len(@slice)>0) INSERTINTO@temptable(Items)VALUES(@slice) SET@String=RIGHT(@String,len(@String)-@idx) IFlen(@String)=0break END RETURN END 示例:如果输入 SELECT*FROMdbo.Split_StrByDelimiter('sun,star,moon,clouds',',') ...
sqlquery = 'SELECT * FROM airlinesmall'; Split the original SQL query into multiple page queries and display them. Specify a split size of 10,000 rows. splitsize = 10000; querybasket = splitsqlquery(conn,sqlquery,'SplitSize',splitsize) querybasket = 13×1 string array " SELECT * FR...
hive> select split('abtcdtef','t') from tableName; ["ab","cd","ef"] 集合查找函数: find_in_set 语法: find_in_set(string str, string strList) 返回值: int 说明: 返回str在strlist第一次出现的位置,strlist是用逗号分割的字符串。如果没有找该str字符,则返回0 ...