CREATE TABLE contract_asset_attachment (
    ContractAssetAttachmentID int(11) NOT NULL AUTO_INCREMENT,
    ContractAssetAttachmentPurchaseOrderID int(11) NOT NULL,
    ContractAssetAttachmentPurchaseOrderAssetContractID int(11) NOT NULL,
    ContractAssetAttachmentFileName varchar(255) DEFAULT NULL,
    ContractAssetAttachmentDate date DEFAULT NULL,
    ContractAssetAttachmentIsActive char(1) DEFAULT 'Y',
    ContractAssetAttachmentCreated datetime NOT NULL DEFAULT current_timestamp(),
    ContractAssetAttachmentLastUpdated datetime NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
    ContractAssetAttachmentUserID int(11) DEFAULT 0,
    PRIMARY KEY (ContractAssetAttachmentID),
    KEY ContractAssetAttachmentPurchaseOrderID (ContractAssetAttachmentPurchaseOrderID),
    KEY ContractAssetAttachmentIsActive (ContractAssetAttachmentIsActive)
);