Comparing Wolfram Language‐Style Queries and SQL‐Style Queries
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DatabaseLink provides two styles of commands for working with data: one for those who are familiar with the Wolfram Language and the other for those who are familiar with SQL. The Wolfram Language style requires less knowledge of SQL. However, the Wolfram Language commands do not give complete coverage; thus, for more advanced queries, SQL‐style commands may be preferred. The latter may also be desirable if you already have a knowledge of SQL.
DatabaseLink can work with databases with raw SQL statements. This is useful if you already have a knowledge of SQL. Statements can be used to select data, create tables, insert data, update data, remove data, and drop tables. Typically these statements are passed to a command, SQLExecute. The statement used by SQLExecute is a string that can contain all arguments. However, it is also possible to give the arguments separately, which makes the statement a prepared statement. SQLExecute can also be used to execute a batch of prepared statements with different arguments, as described in "Performance: Batch Operation".