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How to declare a variable in a PostgreSQL query
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There is no such feature in PostgreSQL. You can do it only in pl/PgSQL (or other pl/*), but not in plain SQL.
An exception is WITH () query which can work as a variable, or even tuple of variables. It allows you to return a table of temporary values.
WITH master_user AS (...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C++内核技术
...ridCGridCellNumeric-A-numeric-cell-class-for-the-MFC-GridA locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating...A locale aware, editable, self validating numeric cell class for the MFC Grid. Configurable for integers, floating point, or c...