[英]Fill more than one column with SELECT in statement
I would like to ask how can I insert data into a more than one column at the same time if I have an SELECT
statement in an INSERT
statement.我想问一下,如果我在
INSERT
语句中有SELECT
语句,如何同时将数据插入到一个以上的列中。 I want to fill the following table:我想填写下表:
|-------------------|-----------------|--------------|-----------------|
| TableName | ColName | Value | SQL_Statement |
|-------------------|-----------------|--------------|-----------------|
I have following query which is only filing a Value column:我有以下查询,它只提交一个 Value 列:
SET @SQL_String = 'INSERT INTO #ResultTable(Value) SELECT ' + @ColName + ' FROM ' + @TableSchema + '.' + @TableName + ' WHERE ' + @ColName + ' = ''' + cast(@GuidArgument AS NVARCHAR(50)) + '''';
I need to fill all the columns but I don't know how to write that query.我需要填写所有列,但我不知道如何编写该查询。 Here is some "pseudocode" of a query I need:
这是我需要的查询的一些“伪代码”:
INSERT INTO TableSchema
(
TableName,
ColName,
Value,
SQL_Statement
)
VALUES
(
@TableName,
@ColName,
[THAT LONG SELECT FROM QUERY ABOVE],
@SQL_Statement
);
Please consider that I'm using a dynamic query.请考虑我使用的是动态查询。
Thank you all!谢谢你们!
PS: It wasn't so easy to summarize my request, any edits are really appreciated. PS:总结我的要求并不容易,任何编辑都非常感谢。
If you want to change your @SQL_String expression, we can achieve this the following way.如果你想改变你的@SQL_String表达式,我们可以通过以下方式实现。 I hope this is that you are expecting.
我希望这是你所期待的。
SET @SQL_String=
N'INSERT INTO #ResultTable
(
TableName,
ColName,
Value,
SQL_Statement
)
SELECT
'+@TableName+',
'+@ColName+',
(SELECT ' + @ColName + ' FROM ' + @TableSchema + '.' + @TableName + ' WHERE ' + @ColName + ' = ''' + cast(@GuidArgument AS NVARCHAR(50)) + '''),
'''+@SQL_Statement+''''
You don't want to use the VALUES
keyword here.您不想在此处使用
VALUES
关键字。 When you want to select a value from a table to insert it, you must use insert into .. select ..
Something like that:当你想从表中选择一个值来插入它时,你必须使用
insert into .. select ..
类似的东西:
Insert INTO TableName
(col1,
col2,
col3,
col4)
Select 'AStaticValue',
'AnotherStaticValue',
col1,
col4
FROM AnotherTable
WHERE SomeCondition = true
So in your case, it should look something like:所以在你的情况下,它应该是这样的:
INSERT INTO TableSchema
(
TableName,
ColName,
Value,
SQL_Statement
)
Select
@TableName,
@ColName,
ColumnNameFromYourQuery,
@SQL_Statement
From your-table where condition;
My advice is to run two queries :我的建议是运行两个查询:
1) SELECT query 1) SELECT 查询
SET @SQL_String = 'INSERT INTO #ResultTable(Value) SELECT ' + @ColName + ' FROM ' + @TableSchema + '.' + @TableName + ' WHERE ' + @ColName + ' = ''' + cast(@GuidArgument AS NVARCHAR(50)) + '''';
2) UPDATE query 2) 更新查询
UPDATE TableSchema
SET TableName= @TableName, ColName= @ColName, SQL_Statement= @SQL_Statement
WHERE SQL_Statement=@SQL_Statement;
Add static value to your SELECT
query :将静态值添加到您的
SELECT
查询:
INSERT INTO TableSchema
SELECT @TableName
,@ColName
,col1
,col2
,colX
FROM WhateverTable
WHERE some_column = 'some_value'
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