embedded SQL


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embedded SQL

SQL statements that are written into a high-level programming language such as C or Pascal. In a preprocessing stage, the SQL code is converted into function calls, which may be optimized to provide the fastest results. If the programmer knows exactly what the query is going to do, and the query does not change, it is called "static SQL." If the query requires user input at runtime, it is called "dynamic SQL." If the client program passes the SQL statements directly to the database server without any intermediate step, it is called "passthrough SQL."
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Additionally, 4.0 has a new Harmony Xpress offering that reduces the total cost of ownership for customers with up to 100 seats by delivering a version of Harmony with an embedded SQL database free of charge.
The feature also includes automated failover of in-memory databases and applications and integration with Oracle Clusterware and Oracle Data Guard to help avoid downtime and data loss in case of failure, and it support for PL/SQL, Oracle Call Interface (OCI), and Pro C embedded SQL Programming language.
<% DIM connString, conn ConnString = "DRIVER={MySQL ODBC 3.51 Driver}; SERVER=www3.north.londonmet.ac.uk; PORT=3307; DATABASE=dbname; UID=userid; PASSWORD=userpw; OPTION=3" SET conn = Server.CreateObject("ADODB.Connection") conn.Open(connString) SET rs = Server.CreateObject("ADODB.recordset") rs.open "SELECT * FROM table_name", conn %> The embedded SQL query, SELECT * FROM table_name, was to select every filed from the table_name table of the dbname MySQL database.
A developer is able to quickly define and generate Web services and take advantage of embedded SQL, Single Sign On (SSO) Security and hierarchical data structures.
The unit uses a high-speed embedded SQL database for storing information, enabling full-featured searches based on alarms, camera name, date, and time.
Consequently, incorporating a hands-on exposure to such front-ends, as well as embedded SQL, in the course will enhance the overall value of the course to the students.

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