SourcePro® 2024.1 |
SourcePro® API Reference Guide |
Represents the result of applying logical operators to RWDBExpr. It encapsulates search conditions that are used in SQL WHERE
clauses and CHECK
constraints.
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#include <rw/db/expr.h>
Public Member Functions | |
RWDBCriterion (void) | |
Public Member Functions inherited from RWDBExpr | |
RWDBExpr () | |
RWDBExpr (char value) | |
RWDBExpr (const char *value) | |
RWDBExpr (const RWBasicUString &value) | |
RWDBExpr (const RWCollection &collection) | |
RWDBExpr (const RWCString &value) | |
RWDBExpr (const RWDate &value) | |
RWDBExpr (const RWDateTime &value) | |
RWDBExpr (const RWDBBlob &value) | |
RWDBExpr (const RWDBColumn &column) | |
RWDBExpr (const RWDBColumn &left, const RWDBExpr &right) | |
RWDBExpr (const RWDBColumn &left, const RWDBValue &right) | |
RWDBExpr (const RWDBDateTime &value) | |
RWDBExpr (const RWDBDuration &value) | |
RWDBExpr (const RWDBExpr &expr) | |
RWDBExpr (const RWDBMBString &value) | |
RWDBExpr (const RWDBSelectorBase &subSelect) | |
RWDBExpr (const RWDBTable &) | |
RWDBExpr (const RWDBValue &value, bool usePhraseBook=true) | |
RWDBExpr (const RWDecimalPortable &value) | |
RWDBExpr (const RWTime &value) | |
RWDBExpr (const RWWString &value) | |
RWDBExpr (const wchar_t *value) | |
RWDBExpr (double value) | |
RWDBExpr (float value) | |
RWDBExpr (int value) | |
RWDBExpr (long double value) | |
RWDBExpr (long int value) | |
RWDBExpr (long long value) | |
RWDBExpr (RWDBValueManip manip) | |
RWDBExpr (short value) | |
RWDBExpr (unsigned char value) | |
RWDBExpr (unsigned int value) | |
RWDBExpr (unsigned long int value) | |
RWDBExpr (unsigned long long value) | |
RWDBExpr (unsigned short value) | |
RWCString | asString (const RWDBPhraseBook &phraseBook, AsStringControlFlag control=normal) const |
RWDBCriterion | between (const RWDBExpr &expression1, const RWDBExpr &expression2) const |
RWDBCriterion | in (const RWDBExpr &expression1) const |
RWDBCriterion | isNull (void) const |
bool | isValid (void) const |
RWDBCriterion | leftOuterJoin (const RWDBExpr &expression) const |
RWDBCriterion | like (const RWDBExpr &expression1) const |
RWDBCriterion | matchUnique (const RWDBExpr &expression1) const |
RWDBExpr & | operator= (const RWDBExpr &expr) |
RWDBCriterion | rightOuterJoin (const RWDBExpr &expression) const |
RWDBCriterion is the result of applying logical operators to RWDBExpr. It is used to encapsulate search conditions that are used in SQL WHERE
clauses and SQL CHECK
constraints.
RWDBCriterion represents a specialized type of RWDBExpr that is evaluated in an SQL statement as a boolean value. RWDBCriterion adds neither components nor member functions to the base class. Instead, it ensures that a nonboolean expression is not placed in a context that requires a boolean expression during compilation.
WHERE
clause: RWDBCriterion::RWDBCriterion | ( | void | ) |
The default constructor creates an empty criterion.
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