Il Modello Pragmatico Elementare per lo sviluppo di Sistemi Adattivi - Presen...
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1. BASI DI DATI ESERCITAZIONI -2- MSSQL - SQL Email: francesco.magagnino@ewave.it Università di Trento Corso di Laurea in Ingegneria dell’Informazione e dell’Organizzazione
4. MSSQL 2000 NORTWIND TABLE Orders Table Design Table Per impostare un contatore Identity = Yes Per impostare Primary Key Pulsante dx -> Set Primary Key
5. Per impostare un contatore Identity = Yes Per impostare Primary Key Pulsante dx -> Set Primary Key MSSQL 2005 NORTWIND TABLE Orders Table Design Table
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9. Data types -3- TextArea tipico campo da NText TextField tipico campo da Nvarchar
10. A globally unique identifier uniqueidentifier A database-wide unique number that gets updated every time a row gets updated timestamp A special data type used to store a result set for later processing table A data type that stores values of various data types, except text, ntext, timestamp, and sql_variant sql_variant A reference to a cursor cursor Variable-length binary data with a maximum length of 2^31 - 1 bytes image Variable-length binary data with a maximum length of 8,000 bytes varbinary Fixed-length binary data with a maximum length of 8,000 bytes binary Variable-length Unicode data with a maximum length of 2^30 - 1 characters ntext Variable-length Unicode data with a maximum length of 4,000 characters nvarchar Fixed-length Unicode data with a maximum length of 4,000 characters nchar Variable-length data with a maximum length of 2^31 - 1 characters text Variable-length data with a maximum of 8,000 characters varchar Fixed-length character data with a maximum length of 8,000 characters char Date and time data from January 1, 1900, through June 6, 2079, with an accuracy of one minute smalldatetime Date and time data from January 1, 1753, through December 31, 9999, with an accuracy of 3.33 milliseconds datetime Floating precision number data from -3.40E + 38 through 3.40E + 38 real Floating precision number data from -1.79E + 308 through 1.79E + 308 float Monetary data values from -214,748.3648 through +214,748.3647 smallmoney Monetary data values from -2^63 through 2^63 - 1 money Fixed precision and scale numeric data from -10^38 +1 through 10^38 -1 numeric Fixed precision and scale numeric data from -10^38 +1 through 10^38 -1 decimal Integer data with either a 1 or 0 value bit Integer data from 0 through 255 tinyint Integer data from -2^15 through 2^15 - 1 smallint Integer data from -2^31 through 2^31 - 1 int Integer data from -2^63 through 2^63-1 bigint Description Data Types
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16. Le Stored Procedures permettono di togliere tutto il carico di lavoro dall’applicazione esterna. L’applicazione non fa altro che passare le variabili alla SP.
