1232

Css code posted by 3213
created at 15 Feb 00:23, updated at 23 Apr 14:07

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Already implemented PL/SQL features are :

1. Package Bodies
    1.a PL/SQL example
        CREATE OR REPLACE PACKAGE BODY PKG1
        IS
        ...
        END PKG1;
    1.b Parsed XML example
        <Package_Body>
            <Schema_Name>null</Schema_Name>
            <Name>PKG1</Name>
            ...
        </Package_Body>

2. Variable Declarations
    2.a PL/SQL example
        G_SSN           VARCHAR2(10) := NULL;
    2.b Parsed XML example
        <Variable>
            <Name>G_SSN</Name>
            <Type>VARCHAR2(10)</Type>
            <Expression>
                <Type>SIMPLE</Type>
                <Value>NULL</Value>
            </Expression>
        </Variable>

3. SQL Select Statements
    3.a PL/SQL example
        SELECT NAME
          INTO G_NAME
          FROM PS_PERSONAL_DATA
          WHERE EMPLID = P_EMPLID;
    3.b Parsed XML example
        <SQL>
            <Select>
                <Column>
                    <Spec>null</Spec>
                    <Name>NAME</Name>
                    <Alias>null</Alias>
                </Column>
            </Select>
            <Into>G_NAME</Into>
            <From>PS_PERSONAL_DATA</From>
            <Where>WHERE EMPLID = P_EMPLID</Where>
        </SQL>

4. Assign statements
    4.a PL/SQL example
        G_NAME := NULL;
    4.b Parsed XML example
        <Statement>
            <Type>Assign</Type>
            <LValue>G_NAME</LValue>
            <RValue>
                <Expression>
                    <Type>SIMPLE</Type>
                    <Value>NULL</Value>
                </Expression>
            </RValue>
        </Statement>

5. Return statements
    5.a PL/SQL example
        RETURN G_NAME;
    5.b Parsed XML example
        <Statement>
            <Type>RETURN</Type>
            <Expression>
                <Type>SIMPLE</Type>
                <Value>G_NAME</Value>
            </Expression>
        </Statement>

6. GOTO statements
    6.a PL/SQL example
        GOTO label_name
    6.b Parsed XML example
        <Statement>
            <Type>GO TO</Type>
            <Label>label_name</Label>
        </Statement>

7. Raise statements
    7.a PL/SQL example
        RAISE exception_name
    7.b Parsed XML example
        <Statement>
            <Type>RAISE</Type>
            <Exception>exception_name</Exception>
        </Statement>

8. NULL statenent
    8.a PL/SQL example
        NULL
    8.b Parsed XML example
        <Statement>
            <Type>NULL</Type>
        </Statement>

9. EXIT statement
    9.a PL/SQL example
        EXIT label_name WHEN plsql_condition )
    9.b Parsed XML example
        <Statement>
            <Type>EXIT</Type>
            <Label>label_name</Label>
            plsql_condition - parsed like pl/sql conditions or expressions  e.g value1 <> value2
        </Statement>

10. Function bodies (with parameters, return type and declarations)
    10.a PL/SQL example
        FUNCTION GETEMPLSSN
          (P_EMPLID    OUT VARCHAR2)
           RETURN  VARCHAR2
        IS
        BEGIN
        END GETEMPLSN;
    10.b Parsed XML example
        <Function>
            <Name>GETEMPLSSN</Name>
            <Parameter>
                <Name>P_EMPLID</Name>
                <Direction> OUT </Direction>
                <Type>VARCHAR2</Type>
            </Parameter>
            <Return>
                <Type>VARCHAR2</Type>
            </Return>
        </Function>

11. Fuction calls (with parmeters, it's also possible to catch "Param_Name => Param_Value" statement for any param)
    11.a PL/SQL example
        NVL(G_EMPLID1,'X');
    11.b Parsed XML example
        <Call>
            <Function>
                <Name>NVL</Name>
                <Parameter>
                    <Name>null</Name>
                    <Value>
                        <Expression>
                            <Type>SIMPLE</Type>
                            <Value>G_EMPLID1</Value>
                        </Expression>
                    </Value>
                </Parameter>
                <Parameter>
                    <Name>null</Name>
                    <Value>
                        <Expression>
                            <Type>SIMPLE</Type>
                            <Value>'X'</Value>
                        </Expression>
                    </Value>
                </Parameter>
            </Function>
        </Call>

12. Relational operators
    =              ->  <Operator>equal</Operator>
    <              ->  <Operator>less then</Operator>
    >              ->  <Operator>greater then</Operator>
    <>, !=, ^=     ->  <Operator>not equal</Operator>
    <=             ->  <Operator>less or equal</Operator>
    >=             ->  <Operator>greater or equal</Operator>

13. IF-THEN-ELSE statements
    13.a PL/SQL example
        IF NVL(G_EMPLID1,'X') <> P_EMPLID THEN
        ...
        END IF;
    13.b Parsed XML example
        <Statement>
            <Type>IF</Type>
            <Expression></Expression> - Expression, Fuction call or something like that
            <Operator></Operator> -- e.g. some relational operator
            <Expression></Expression> - Expression, Fuction call or something like that
            <Code_Section>
                <Type>THEN</Type>
                ... e.g. SQL, statements, calls, expressions tags
            </Code_Section>
            <Code_Section>
                <Type>ELSE</Type>
                ... e.g. SQL, statements, calls, expressions tags
            </Code_Section>
        </Statement>

Please, feel free to express your opinion on how to make it better ... :)
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