CodeDatabaseDelphiRAD Studio

Power Tip: Learn How to Send Arrays To An InterBase Database Using FireDAC In Delphi

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January 13, 2021
The Arrays sample shows you how to use the TFDParam.ArrayType property to send arrays to a database server. To this end the ArrayType property is set to atTable.Note: This demo establishes a connection to the Interbase localhost server by default, using the SYSDBA user. You can change these parameters to connect to a different InterBase server using a valid user name and…
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CodeDatabaseDelphiRAD Studio

Learn How To Define Powerful Dataset Views Using Indices With FireDAC In Delphi Windows Development

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January 11, 2021
The Indices sample shows you how to use the Indexes property of TFDQuery in order to specify a collection of indexes at design time and determine the data view of each index, including a sort order of the records. Moreover, you can sort the records on a specific field using the IndexFieldNames property. Click on a grid column title to sort its records at run time. Location You can…
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CodeDelphiNews

Fast Inverse Square Root in Delphi's Object Pascal

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January 9, 2021
Does Delphi make you a better programmer? Is Object Pascal code more readable? There is an algorithm with a mystery constant that rose to fame in John Carmack’s Quake III Arena C code for quickly estimating the inverse square root of a 32-bit floating-point number. float Q_rsqrt( float number ) { long i; float x2, y; const float threehalfs = 1.5F; x2 = number * 0.5F; y =…
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CodeDatabaseDelphiRAD Studio

Quickly Learn How To Debug And Monitor Your FireDAC Connection In Delphi

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January 6, 2021
TheMoniLayerClientssample shows you how to use the FireDACtracing and monitoringcapabilities to show how an application is communicating with a FireDAC monitor client. To this end, the sample uses two different FireDAC monitor clients: FlatFile-client and Remote-client. To use both monitor clients, the sample uses two client link components: the TFDMoniFlatFileClientLink…
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