# HG changeset patch
# User František Kučera <franta-hg@frantovo.cz>
# Date 1593028850 -7200
# Node ID 66e05b1bbda289a683631be4538411fb7898f307
# Parent  5c878a53d3ed122fa789d3ec3216104d6adb0b1a
data: DSN, ODBC, connection string, data source + database tag

diff -r 5c878a53d3ed -r 66e05b1bbda2 data/dictionary.xml
--- a/data/dictionary.xml	Mon Jun 22 23:11:14 2020 +0200
+++ b/data/dictionary.xml	Wed Jun 24 22:00:50 2020 +0200
@@ -31,6 +31,7 @@
 		
 		<tag id="java" name="Java" description="Java and other JVM languages"/>
 		<tag id="xml" name="XML" description="eXtensible Markup Language"/>
+		<tag id="database" name="Database" description="SQL/Relational and other DBMS"/>
 		<tag id="security" name="Security" description="security and cryptography"/>
 		<tag id="protocol" name="Protocol" description="communication protocol"/>
 	</tags>
@@ -2038,6 +2039,7 @@
 		</explanation>
 		<tag>computer</tag>
 		<tag>protocol</tag>
+		<tag>database</tag>
 	</concept>
 	<concept>
 		<term abbreviation="GAL" completeForm="global address list" language="en"/>
@@ -2090,22 +2092,35 @@
 			</text>
 		</explanation>
 		<tag>computer</tag>
+		<tag>database</tag>
 	</concept>
 	<concept>
 		<term abbreviation="noSQL" completeForm="Not SQL" language="en"/>
 		<explanation language="en"><text></text></explanation>
 		<tag>computer</tag>
+		<tag>database</tag>
 	</concept>
 	<concept>
 		<term abbreviation="RDBMS" completeForm="relational database management system" language="en"/>
+		<term abbreviation="DBMS" completeForm="database management system" language="en"/>
 		<term abbreviation="SŘDB" completeForm="systém řízení báze dat" language="cs"/>
 		<explanation language="en"><text></text></explanation>
 		<tag>computer</tag>
+		<tag>database</tag>
 	</concept>
 	<concept>
 		<term abbreviation="ODBC" completeForm="open database connectivity" language="en"/>
-		<explanation language="en"><text></text></explanation>
+		<explanation language="en">
+			<text>
+				an industry standard that provides API for accessing a DBMS;
+				in late 80s several vendors (mostly from the Unix and database communities) established the SQL Access Group (SAG)
+				and then specified the Call Level Interface (CLI). ODBC, which is based on CLI, was published in early 90s;
+				ODBC is available on many operating systems and there are at least two free software implementations: unixODBC and iODBC;
+				in particular, it is an API consisting of C functions (see the files sql.h and sqlext.h e.g. in unixODBC or iODBC)
+			</text>
+		</explanation>
 		<tag>computer</tag>
+		<tag>database</tag>
 	</concept>
 	<concept>
 		<term abbreviation="JDBC" completeForm="java database connectivity" language="en"/>
@@ -2115,9 +2130,48 @@
 			</text>
 		</explanation>
 		<tag>computer</tag>
+		<tag>database</tag>
 		<tag>java</tag>
 	</concept>
 	<concept>
+		<term abbreviation="" completeForm="data source" language="en"/>
+		<explanation language="en">
+			<text>
+				a set of parameters (like server name, user name, password etc.) needed for connecting to a database;
+				a configuration (e.g. in a file) or then its instantiation (an object) in a running program from which particular database connections can be obtained;
+				see also DSN, connection string
+			</text>
+		</explanation>
+		<tag>computer</tag>
+		<tag>database</tag>
+	</concept>
+	<concept>
+		<term abbreviation="DSN" completeForm="data source name" language="en"/>
+		<explanation language="en">
+			<text>
+				the name of a preconfigured data source
+				– when connecting, we need to know only the DSN –
+				all parameters (like server name, user name, password etc.) can be then looked-up in the configuration;
+				see also data source, connection string
+			</text>
+		</explanation>
+		<tag>computer</tag>
+		<tag>database</tag>
+	</concept>
+	<concept>
+		<term abbreviation="" completeForm="connection string" language="en"/>
+		<explanation language="en">
+			<text>
+				a text string consisting of serialized parameters needed for connecting
+				– we can specify all parameters ad-hoc in the connection string without creating any permanent configuration;
+				a connection string can also refer to an already defined DSN and add or override its parameters
+				see also DSN, data source
+			</text>
+		</explanation>
+		<tag>computer</tag>
+		<tag>database</tag>
+	</concept>
+	<concept>
 		<term abbreviation="AS" completeForm="application server" language="en"/>
 		<explanation language="en"><text></text></explanation>
 		<tag>computer</tag>