Class TDbSeekMultiKey

class TDbSeekMultiKey : public TDbSeekKey;

Description

Database multi-column key value.

The class extends the behaviour of TDbSeekKey by allowing multi-column indexes to be searched using multi-column key values.

The template parameter S specifies the maximum number of column values that can be added to the key value.

Use the TDbSeekKey::Add(TInt) members to append the values for each column in the key value.

Derivation

• TDbSeekKey - Database key value.

• TDbSeekMultiKey - Database multi-column key value.

Members

Defined in TDbSeekMultiKey:

• TDbSeekMultiKey()Constructs an empty multi-column key value.

Inherited from TDbSeekKey:

• Add(TInt)Appends a key value for an TInt8, TInt16 or TInt32 column.
• Add(TInt64)Appends a key value for an TInt64 column.
• Add(TReal32)Appends a key value for a TReal32 column.
• Add(TReal64)Appends a key value for a TReal64 column.
• Add(TTime)Appends a key value for a DateTime column.
• Add(TUint)Appends a key value for a Bit, TUint8, TUint16 or TUint32 column.
• Add(const TDesC16 &)Appends a key value for a Unicode text column.
• Add(const TDesC8 &)Appends a key value for a non-Unicode text column.
• TDbSeekKey(TInt)Constructs a key value for an TInt8, TInt16 or TInt32 column.
• TDbSeekKey(TInt,TInt)
• TDbSeekKey(TInt64)
• TDbSeekKey(TReal32)Constructs a key value for a TReal32 column.
• TDbSeekKey(TReal64)Construct a key value for a TReal64 column.
• TDbSeekKey(TTime)Constructs a key value for a TDateTime column.
• TDbSeekKey(TUint)Constructs a key value for a Bit, TUint8, TUint16 or TUint32 column.
• TDbSeekKey(const TDesC16 &)Constructs a key value for a Unicode text column.
• TDbSeekKey(const TDesC8 &)Constructs a key value for a non-Unicode text column.

inline TDbSeekMultiKey();

Description

Constructs an empty multi-column key value.