Question

我有一个包含varchar（1000）列的 staging 表，其中包含类似

的字符串

一些文本\更多文本\文本字符串\又一个字符串\又一个字符串。

记录可以包含\的8或9次出现，我可以轻松确定

我需要做的是将暂存的记录插入到 * real * 表中，每个字符串都插入到特定的列中。所以我需要确定

如果string包含8个字段，则插入这些目标表列否则，如果字符串包含9个字段，则插入这些目标表列否则跳过

我对程序代码很陌生，并且不了解如何实现此 If，Then，Else 逻辑。谁能帮我一把？

Answer 1

希望此代码可以帮助您解决问题。

create table myTable (
      c1  varchar(1024)
    , c2  varchar(1024)
    , c3  varchar(1024)
    , c4  varchar(1024)
    , c5  varchar(1024)
    , c6  varchar(1024)
    , c7  varchar(1024)
    , c8  varchar(1024)
    , c11  varchar(1024)
    , c12  varchar(1024)
    , c13  varchar(1024)
    , c14  varchar(1024)
    , c15  varchar(1024)
    , c16  varchar(1024)
    , c17  varchar(1024)
    , c18  varchar(1024)
    , c19  varchar(1024)
);

declare @string as varchar(1024) = 'some text\more text\text string again\still another string\one more string\s6\s7\s8';
declare @col_values as table ( idx int identity(1,1), value varchar(1024) );
declare @row_cnt as integer

-- Split the string into separate values
insert into @col_values
select t.value  from string_split (@string,'\') t;
-- Get number of values in splited string
set @row_cnt =  @@ROWCOUNT

if @row_cnt = 8
    begin
        insert into myTable(c1,c2,c3,c4,c5,c6,c7,c8)
            values ( (select value from @col_values where idx = 1)
                   , (select value from @col_values where idx = 2)
                   , (select value from @col_values where idx = 3)
                   , (select value from @col_values where idx = 4)
                   , (select value from @col_values where idx = 5)
                   , (select value from @col_values where idx = 6)
                   , (select value from @col_values where idx = 7)
                   , (select value from @col_values where idx = 8)
                   );

    end;
else
    begin
        if @row_cnt = 9 
            begin
                insert into myTable(c11,c12,c13,c14,c15,c16,c17,c18,c19)
                    values ( (select value from @col_values where idx = 1)
                           , (select value from @col_values where idx = 2)
                           , (select value from @col_values where idx = 3)
                           , (select value from @col_values where idx = 4)
                           , (select value from @col_values where idx = 5)
                           , (select value from @col_values where idx = 6)
                           , (select value from @col_values where idx = 7)
                           , (select value from @col_values where idx = 8)
                           , (select value from @col_values where idx = 9)
                           );
            end;
        else
            -- If there is no 8 or 9 values then raise an exception
            raiserror(N'Number of elements is %d',16,0,@row_cnt);
    end;

select * from myTable ;

drop table myTable ;
go

SQL Server：存储过程编码

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