Useful tips for everyday
How do you check if a user has access to a view in Oracle? To determine which users have direct grant access to a table…
How do I drop a database in single user mode? First, make sure the object explorer is pointed to a system database like master. Second,…
How do I stop a SQL script? Just use a RETURN (it will work both inside and outside a stored procedure). will output: Msg 50000,…
How do I upgrade rdl files? If you change the number of parameters, parameter name, parameter data type, or the name of the RDL file,…
What is a file per table in MySQL? MySQL 8.0 Reference Manual / / A file-per-table tablespace contains data and indexes for a single InnoDB…
How do you remove the last two digits? Step 2: Click inside the cell where you wish to display the number that has had its…
How do you assign values to a multidimensional array? Two – dimensional Array (2D-Array) Declaration – Syntax: data_type[][] array_name = new data_type[x][y]; For example: int[][]…
How do I create a hierarchical query in mysql? Hierarchical data in MySQL: parents and children in one query Resultset should be sorted like a…
Which of the following decomposition is dependency preserving? The relational R is decomposed into R1(ABC) and R2(AD) which is dependency preserving because FD A->BC is…
Do primary keys increase performance? By itself, a primary key does not have a direct affect on performance. But indirectly, it does. This is because…