SAP WHERE LOGEXP COMPARE Get Example source ABAP code based on a different SAP table
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Short Reference > • = ABAP_OSQL_COND • <> ABAP_OSQL_COND • < ABAP_OSQL_COND • > ABAP_OSQL_COND • <= ABAP_OSQL_COND • >= ABAP_OSQL_COND • EQ ABAP_OSQL_COND • NE ABAP_OSQL_COND • LT ABAP_OSQL_COND • GT ABAP_OSQL_COND • LE ABAP_OSQL_COND • GE ABAP_OSQL_COND ABAP_SQLCOND > - Comparison Operators ABAP_SYNTAX ... operand1 operator operand2 $| ${ $[ALL$|ANY$|SOME$]> ( SELECT subquery_clauses> )$} ...> What does it do? This relational expression compares the content of the operand operand1> in accordance with the comparison operator operator > with the content of the operand operand2> or with the result of a scalar subquery>. The following can be specified for operand1> on the left side: Any SQL expressions> except aggregate expressions> and window expressions>. Aggregate expressions> in a HAVING>> clause. The following can be specified for operand2> on the right side: Any elementary SQL operands>. Here, a column col>> must be specified as data_source>~comp>, or tabalias~comp> using the column selector> and it must be possible to compare> the data types of the left side and right side. The content of an ABAP object, that is, an untyped literal>, a host variable>, or a host expression> must match the data type of operand1> in accordance with the rules for lossless assignments>. BEGIN_SECTION VERSION 5 OUT This is checked by the strict modes> of the syntax check from ABAP_RELEASE ABAP_740_SP08 and can raise an exception. END_SECTION VERSION 5 OUT Built-in SQL functions> and cast expressions>. Aggregate expressions> in a HAVING>> clause. The following table shows the possible comparison operators: operator>>Meaning> =>, EQ>True if the content of operand1> is equal to the content of operand2>. <>>, NE>True if the content of operand1> is not equal to the content of operand2>. < >, LT>True if the content of operand1> is less than the content of operand2>. >>, GT>True if the content of operand1> is greater than the content of operand2>. < =>, LE>True if the content of operand1> is less than or equal to the content of operand2>. >=>, GE>True if the content of operand1> is greater than or equal to the content of operand2>. The following should be noted when using these operators: If operand2> is an untyped literal>, a host variable>, or a host expression>, the value is converted, if necessary, to the data type that matches the type of the operand operand1> in accordance with the ABAP conversion rules> and the tables of built-in types in the ABAP Dictionary> before the statement is passed to the database. Comparisons between columns or between SQL expressions (including typed literals> and aggregate expressions) and columns are performed completely on the database. No type conversions are made in ABAP beforehand. If the data types or lengths on the left and right side do not match, the resulting behavior depends entirely on the conversion rules of the database, where fewer conversions are generally possible here than in ABAP. The platform-dependent behavior can produce different results or even SQL errors on individual platforms. For details on the conversion rules of SAP HANA Platform, see the SAP HANA SQL Reference Guide>. The decimal places are respected in comparisons between numeric types. In greater than or less than comparisons with character-like types, the result can depend on the code page> used by the database system. This applies in particular to the non-printable characters. Trailing blanks are usually ignored in comparisons between character-like types. In the case of columns that contain nothing but a blank character, it depends on the platform how this blank is saved: In the SAP HANA database and in MaxDB, a single blank is saved as an empty string and not as specified by the code page in question. In all other database and in table buffering>, a single blank is saved in accordance with the code page. This means that the behavior produced when a value of this type is selected using size comparisons depends on the platform and buffering. More specifically, a single blank in the SAP HANA database and in MaxDB is not found in the interval of all possible characters. Latest notes: Size comparisons for character-like operands should be avoided to prevent platform-dependent behavior. An exception here are simple cases, such as operands that contain only digits. NON_V5_HINTS The obsolete forms > < >, = < >, and =>>> of comparison operators may still appear outside of classes. ABAP_HINT_END ABAP_EXAMPLE_VX5 Reads flights with a seat occupancy that is less than the entered value. ABEXA 01394 ABAP_EXAMPLE_END ABAP_EXAMPLE_VX5 Reads overbooked flights. ABEXA 01395 ABAP_EXAMPLE_END