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INSERT INTO phone_book2 (name, number) SELECT name, number FROM phone_book WHERE name IN ('John Doe', 'Peter Doe') The SELECT statement produces a (temporary) table, and the schema of that temporary table must match with the schema of the table where the data is inserted into.
A surrogate key is frequently a sequential number (e.g. a Sybase or SQL Server "identity column", a PostgreSQL or Informix serial, an Oracle or SQL Server SEQUENCE or a column defined with AUTO_INCREMENT in MySQL). Some databases provide UUID/GUID as a possible data type for surrogate keys (e.g. PostgreSQL UUID [3] or SQL Server ...
It is often useful or necessary to know what identity value was generated by an INSERT command. Microsoft SQL Server provides several functions to do this: @@IDENTITY provides the last value generated on the current connection in the current scope, while IDENT_CURRENT(tablename) provides the last value generated, regardless of the connection or scope it was created on.
The OFFSET clause specifies the number of rows to skip before starting to return data. The FETCH FIRST clause specifies the number of rows to return. Some SQL databases instead have non-standard alternatives, e.g. LIMIT, TOP or ROWNUM. The clauses of a query have a particular order of execution, [5] which is denoted by the number on the right ...
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AutoNumbers generated by this mechanism start with the start number and increment with the increment value, checking for collision with existing table rows. [2] random AutoNumbers generated by this mechanism are assigned using a pseudo-random number generator that generates long integers and checks for collisions with existing table rows. [2]
Three children were found living alone in "absolute squalor" in a Pontiac, Michigan, rental home after their mother abandoned them years ago, authorities said.
California officials said late Monday that the U.S. military did not enter the state and release a large flow of water, as President Donald Trump had earlier claimed in the latest back-and-forth ...