sql column name as variable

I. What is covered in this article (Contents) What is covered in this article (Contents) Background (contexts) Implementation code (SQL Codes) Method One: Use splicing SQL, static column field; Method two: Using

I. What is covered in this article (Contents) What is covered in this article (Contents) Background (contexts) Implementation code (SQL Codes) Method One: Use splicing SQL, static column field; Method two: Using

I. What is covered in this article (Contents) What is covered in this article (Contents) Background (contexts) Implementation code (SQL Codes) Method One: Use splicing SQL, static column field; Method two: Using

One or more rows into a column (and separated by ",")Table Name: ATable data:Desired Query Results:Query statement:Select Name, value = (STUFF (select ', ' + value from A WHERE name = Test.name

One or more rows into a column (and separated by ",")Table Name: ATable data:Desired Query Results:Query statement:Select Name, value = (STUFF (select ', ' + value from A WHERE name = Test.name

SQL Row to Column rollupPivot is used to rotate column values to column names (row to column), and SQL Server 2000 can be implemented with an aggregate function with a case statementThe general syntax for pivot is: Pivot (aggregate function (column)

Pivot is used to rotate column values to column names (row to column)Grammar:Table_sourcepivot (Aggregation function (value_column) for Pivot_columnin ())Unpivot used to set the column value to a column (that is, a column

SQL Server row and column conversion Pivot UnPivotPivot is used to rotate column values to column names (row to column), and SQL Server 2000 can be implemented with an aggregate function with a case statementThe general syntax for pivot is: Pivot

Grammar:identifier [CONSTANT] datatype [not NULL] [: = | DEFAULT Expr]Identifier: Used to specify the name of a variable or constant.CONSTANT: Used to specify constants. When you define a constant, you must specify its initial value, and its value

Pivot is used to rotate column values to column names (row to column), and SQL Server 2000 can be implemented with an aggregate function with a case statementThe general syntax for pivot is: Pivot (aggregate function (column) for column in (...)) As