CheckValidAndPrepareWhere - Prepare where and check missing values for update.

DeleteData - cruD.

InitDB - Prepare DB.

InsertData - Crud.

InsertDataMAP - Crud.

PrepareWhere - Prepare where condition for search.

SelectCount - data count -> pages = (data count) / (count per page).

SelectData - cRud.

SelectDataMAP - cRud MAP.

UpdateData - crUd.

UpdateDataMAP - crUd.

MYSQL - mysql.

POSTGRES - pgsql.

SQLITE - sqlite.

SQLSERVER - mssql.

once sync.Once.

DB Object Interface.

Data Source Name.

Ignore if nil or null.

Default order column name.

UPDATE ..