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Free pascal sqlite example code full#
Free pascal sqlite example code code#

You will be able to see "Hello World" printed on the screen and program waits till you press any key.įree Pascal Compiler version 2.6.0 for x86_64Ĭopyright (c) 1993-2011 by Florian Klaempfl and others Now, type hello at command prompt to execute your program. If there are no errors in your code, the command prompt will take you to the next line and would generate hello executable file and hello.o object file. Type fpc hello.pas at command prompt and press enter to compile your code.

Open a command prompt and go to the directory, where you saved the file. Open a text editor and add the above-mentioned code. The statement readkey allows the display to pause until the user presses a key. The statement writeln('Hello, World!') uses the writeln function available in Pascal which causes the message "Hello, World!" to be displayed on the screen. Replace the values in the query with a colon followed by the name of the parameter you want to use. The lines within (*.*) will be ignored by the compiler and it has been put to add a comment in the program. The syntax of parameters in queries is different per database system, but the differences are handled by TSQLQuery. The begin statement of the main program block is where the program execution begins.

Free pascal sqlite example code full#

However, the end statement indicating the end of the main program is followed by a full stop (.) instead of semicolon ( ). Every block in Pascal is enclosed within a begin statement and an end statement. Order By sort the result set in ascending or descending order. Select query data from a single table using SELECT statement. The next lines enclosed within begin and end statements are the main program block. If you are already familiar with SQL, you will notice the differences between SQL standard and the SQL dialect used in SQLite. The second line of the program uses crt is a preprocessor command, which tells the compiler to include the crt unit before going to actual compilation. The first line of the program program HelloWorld indicates the name of the program. Let us look various parts of the above program −

Free pascal sqlite example code code#

Uses įollowing is a simple pascal code that would print the words "Hello, World!" − Following format shows the basic syntax for a Pascal program −

Statements and Expressions within each blockĮvery pascal program generally has a heading statement, a declaration and an execution part strictly in that order.

Pascal Program StructureĪ Pascal program basically consists of the following parts − Before we study basic building blocks of the Pascal programming language, let us look a bare minimum Pascal program structure so that we can take it as a reference in upcoming chapters. left 395 height 332 top 218 width 534 activecontrol nbmain bordericons bisystemmenu, biminimize borderstyle bssingle caption 'master detail example - sqllite3' clientheight 305 clientwidth 534 font.height -13 font.