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level: SQL.

Questions and Answers List

level questions: SQL.

QuestionAnswer
SQL Write how you would select all the values from a databaseSELECT * FROM table_name;
SQL Write how you would select the values from a column from a databaseSELECT column1 FROM table_name;
SQL Write how you would select a few columns from a databaseSELECT column1, column2, columnN... FROM table_name;
In a general way use SQL to define a databaseCREATE TABLE table_name ( column1 datatype, column2 datatype, column3 datatype, .... );
With SQL, define a database of a 'Garage' with columns for: PartsNo Customers Employees CompletedCREATE TABLE Garage int Key ( PartsNo int, Customers string, Employees string, Completed bool );
SQL Write how you would update all the values in a databaseUPDATE table_name SET column1 = value1, column2 = value2, ...
SQL Write how you would update all specific values in a databaseUPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition
SQL Write the line(s) for delete all the rows in a table without deleting the tableDELETE FROM table_name;
SQL Write the line(s) for delete existing records in a tableDELETE FROM table_name where CONDITION = TRUE;
SQL Write the line(s) to insert into a tableINSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);
SQL How would you compare and return matching data from more than one tableSELECT Table1.ColumnX, Table2.ColumnY, Table2.ColumnX, ... FROM Table1, Table2, ... WHERE Table1.ColumnZ = Table2.ColumnZ The selct is whats going to be printed as a new table The from is just every table you want to use The where is the condtion on whats selected
SQL How would you use the Between command in SQL langaugeSELECT * FROM Table WHERE Column BETWEEN number1 AND number2;