SQL Server 2016 引入了一个新的内置表值函数STRING_SPLIT,它将指定的分隔字符拆分提供的输入字符串,并以 table 的形式返回输出分隔值,每个分隔符之间的每个分隔值都有一行。 STRING_SPLIT 函数有两个参数: STRING_SPLIT (字符串,分隔符) 该字符串是具有 char,nchar,varchar 或 nvarchar 数据类型的字符表达式。分...
② 创建函数实现包 create orreplace package get_split_table_pkg is -- Author : Jason Shang -- Created : 2016/8/12 14:07:09 -- Purpose : function fn_get_split_table(i_in_char clob,i_split varchar2) return base_type_library_pkg.ba_tab_type pipelined; endget_split_table_pkg; / cre...
/ CREATEORREPLACEFUNCTIONSplitStringWithSeq( p_stringINVARCHAR2, p_delimiterINVARCHAR2 )RETURNSplitStringWithSeqTableType PIPELINEDAS l_start_pos PLS_INTEGER := 1; l_end_pos PLS_INTEGER; l_seq_num PLS_INTEGER := 1; l_str_value VARCHAR2(4000); BEGIN LOOP l_end_pos := INSTR(p_string,...
SQL Server 2016 (13.x) 和更新版本 Azure SQL 資料庫 Azure SQL 受控執行個體 Azure Synapse Analytics Microsoft Fabric 中的 SQL 分析端點 Microsoft Fabric 中的倉儲 STRING_SPLIT是數據表值函式,會根據指定的分隔符,將字串分割成子字串的數據列。
CREATEFUNCTION`split`(inputStrvarchar(1000),seperatorStrvarchar(50))RETURNSint(11)###这两行告诉MySql该函数不会修改数据(尤其对数据库权限只有自读权限的账户是非常有用的)READSSQLDATADETERMINISTIC###BEGIN###返回替换前长度减去用''替换后的长度得到seperatorStr的个数。return(length(inputStr)-length(replac...
对比看出如果用IN字句会用一个HASH MATCH的聚合操作符,而用INNER JOIN则用DISTINCT SORT。 而如果对比IO统计数据可以发现IN字句的做法多出了许多Workfile产生的IO (128478 行受影响) 表'Worktable'。扫描计数 0,逻辑读取 0 次,物理读取 0 次,预读 577 次,lob 逻辑读取 0 次,lob 物理读取 0 次,lob 预读 0...
In the 1st part of this post, I explained how to create a partitioned table using a partition function as well as a partition schema. Now I’ll continue talking about how to merge or split partitions changing the partition function and the partition schema and...
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My coworker replied, "Why don't you make your own SQL Server split function?" So, I created the fn_Split() multistatement table-valued function. (A multistatement table-valued function is essentially a stored procedure that returns a table that you can embed in a query.)...