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AB_SQL in ABAP Release 7.50 ITOC
ABAP_MODIFICATION_NN Arrangement of SELECT Clauses and FROM Clauses FROM clause of a SELECT statement can also be specified in front of the SELECT clause. In this case, the SELECT clause must be introduced using the new addition FIELDS. This arrangement supports tools such as Code Completion in ABAP Editor. ABAP_MODIFICATION_NN Unions UNION creates the union of the results sets of two SELECT statements. ABAP_MODIFICATION_NN Host Expressions host expressions with the syntax @( expr ) can be specified in many operand positions in which host variables are possible. For expr, all ABAP expressions can calls are possible that can be specified in general expression positions. Arguments of SQL expressions and hence all operand positions in which these are possible. Operand n after UP TO and PACKAGE SIZE in the SELECT statement, Right sides of WHERE, ON, or HAVING conditions, except for LIKE and IN. Actual parameters for input parameters of CDS views. In the write statements INSERT, UPDATE, MODIFY , and DELETE, the work areas wa or the internal tables itab from which the data is taken. Right side of a SET expression in UPDATE. ABAP_MODIFICATION_NN SQL Expressions From ABAP_RELEASE 7.50, SQL expressions can be specified in the following operand positions (except in the SELECT list): Left side of any WHERE condition Left side of a HAVING condition Left side of a complex case distinction As an operand of a cast expression. In the SQL expression CASE, columns with the built-in dictionary type SSTRING can now be used. ABAP_MODIFICATION_NN SQL Functions New Numeric Function The new function ROUND rounds numeric values. New String Functions The new functions CONCAT, LPAD, LENGTH, LTRIM, REPLACE, RIGHT, RTRIM, and SUBSTRING perform operations on strings. Coalesce Function Expanded The coalesce function can now have 255 arguments instead of just two and returns the value of the first argument that does not have the null value. Columns with the built-in dictionary type SSTRING can now be used as arguments. ABAP_MODIFICATION_NN ON Conditions SQL expressions can be used on the left side of the ON condition of any join expression. The expression IS $[NOT$] NULL can be used in an ON condition of an outer join. The full ON condition or subconditions of joins can be specified dynamically as (cond_syntax). This is not possible if the full FROM clause is specified dynamically as (cond_syntax). ABAP_MODIFICATION_NN Columns Specified After BETWEEN BETWEEN, providing the name of the database table or view is prefixed using ~. ABAP_MODIFICATION_NN Subquery as Data Source of INSERT INSERT , a parenthesized subquery can now be specified as a data source after FROM. The rows of the results set of the subquery are inserted into the target table directly on the database. No data transport is required between the database and the application server. ABAP_MODIFICATION_NN Access to CDS Entities From ABAP_RELEASE 7.50, the restriction no longer applies that a CDS entity can only be used together with database tables and classic views in a SELECT statement if addressed using its CDS database view. From ABAP_RELEASE 7.50, CDS views can be addressed using the name of their CDS entity, even if associated with database tables or classic views using joins or subqueries. This makes accesses performed on a CDS using the CDS database view obsolete. From ABAP_RELEASE 7.50, the new CDS table functions can also be specified as data sources of a SELECT statement alongside CDS views. If an input parameter of a CDS entity is annotated with the new annotation @Environment.systemField , AB_SQL can pass the system value that matches the value of the annotation implicitly. The annotation value #CLIENT even prevents an actual parameter from being passed to input parameters explicitly that are annotated in this way for client IDs. ABAP_MODIFICATION_NN CDS Path Expressions path expressions can be specified in SELECT statements that access CDS views with associations published for outside use as follows. Path expressions closed with an element can be specified as columns. Path expressions closed with a target data source can be used as data sources of the FROM clause. ABAP_MODIFICATION_NN Access to Global Temporary Tables global temporary tables in ABAP Dictionary are accessed using AB_SQL , all temporary data stored here is guaranteed to be deleted before the next implicit database commit, If not, a runtime error occurs. ABAP_MODIFICATION_NN Strict Mode in the Syntax Check strict mode, which handles the statement more strictly than the regular syntax check. ABAP_MODIFICATION_NN CDS Views with Input Parameters input parameters of CDS views are supported by all database platforms and can be used in AB_SQL . It is no longer necessary to query property VIEWS_WITH_PARAMETERS using method USE_FEATURES of class CL_ABAP_DBFEATURES. Querying this property results in a warning check from the syntax check. ABAP_MODIFICATION_NN System Classes The class CL_ABAP_DBFEATURES can now be used to check all features of databases that can be integrated in ABAP programming but which cannot be used in all database systems. The new system class CL_DBI_UTILITIES contains utility methods for the database interface. The documented method IS_LOGGING_ON can be used to verify whether logging is currently switched on for a database table. ABAP_MODIFICATION_NN Access to Replacement Objects CDS view as a replacement object in ABAP Dictionary (transaction SE11) for a database table or a database view. data source of a SELECT statement, the SELECT statement accesses the CDS view and not the database table or the database view.
