SSIS Expression Use Cases. Control Flow. Variable values can be derived from other variables using expressions. Precedence constraints can make use of expressions to validate a condition. SSIS Tasks and Containers can also make use of expressions to set a property at run time.
1 The labor cost to install a coffered ceiling is usually around $8 to $15 per square foot, while material prices may range from $5 to $19 per square foot, depending on the type of material you use. 2  To get an exact quote for your professional job, consider using free website quote engines such as HomeAdvisor.com.
A series of these sunken panels were used as decoration for a ceiling or a vault, also called caissons ('boxes), or lacunaria (spaces, openings), so that a coffered ceiling can be called a lacunar ceiling: the strength of the structure is in the framework of the coffers. coffer (or coffering) in architecture, is a series of sunken panels in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault.