const regex = /(?<prm>\w+)\s+.*:\s*=\s*'(?<tbl>\w+)'\s*;(?:.|\n)*(?:alter|create)\s+table\s+'\s*\|\|\s*(\k<prm>\s+)/ig;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(?<prm>\\w+)\\s+.*:\\s*=\\s*\'(?<tbl>\\w+)\'\\s*;(?:.|\\n)*(?:alter|create)\\s+table\\s+\'\\s*\\|\\|\\s*(\\k<prm>\\s+)', 'ig')
const str = `DECLARE
COUNTER NUMBER(10) := 0;
pTABLENAME VARCHAR2(100) := 'ALM_AL1';
pCOLUMNNAME VARCHAR2(100) := 'FLOATACCRUALDCBASISDAYC';
pDATATYPE VARCHAR2(100) := 'NVARCHAR2(50) NULL';
pSQL VARCHAR2(32000) := '
ALTER TABLE ' || pTABLENAME || ' ADD ' || pCOLUMNNAME || ' ' || pDATATYPE;
BEGIN
SELECT COUNT(0) INTO COUNTER FROM USER_TAB_COLUMNS WHERE TABLE_NAME=UPPER(pTABLENAME) AND COLUMN_NAME=UPPER(pCOLUMNNAME);
IF COUNTER>0 THEN
dbms_output.put_line(pTABLENAME || ' tablosunda ' || pCOLUMNNAME || ' kolonu var.');
ELSE
EXECUTE IMMEDIATE pSQL;
dbms_output.put_line(pTABLENAME || ' tablosuna' || pCOLUMNNAME || ' kolonu oluÅ?turuldu.');
END IF;
EXCEPTION
WHEN OTHERS THEN
dbms_output.put_line('HATA: ' || pSQL || ' -> SQLERRM: ' || SQLERRM);
END;
/
DECLARE
COUNTER NUMBER(10) := 0;
pTABLENAME VARCHAR2(100) := 'ALM_AL2';
pCOLUMNNAME VARCHAR2(100) := 'RATETYPETYPE';
pDATATYPE VARCHAR2(100) := 'NVARCHAR2(40) NULL';
pSQL VARCHAR2(32000) := '
ALTER TABLE ' || pTABLENAME || ' ADD ' || pCOLUMNNAME || ' ' || pDATATYPE;
BEGIN
SELECT COUNT(0) INTO COUNTER FROM USER_TAB_COLUMNS WHERE TABLE_NAME=UPPER(pTABLENAME) AND COLUMN_NAME=UPPER(pCOLUMNNAME);
IF COUNTER>0 THEN
dbms_output.put_line(pTABLENAME || ' tablosunda ' || pCOLUMNNAME || ' kolonu var.');
ELSE
EXECUTE IMMEDIATE pSQL;
dbms_output.put_line(pTABLENAME || ' tablosuna' || pCOLUMNNAME || ' kolonu oluÅ?turuldu.');
END IF;
EXCEPTION
WHEN OTHERS THEN
dbms_output.put_line('HATA: ' || pSQL || ' -> SQLERRM: ' || SQLERRM);
END;
/
DECLARE
COUNTER NUMBER(10) := 0;
pTABLENAME VARCHAR2(100) := 'ALM_AL3';
pCOLUMNNAME VARCHAR2(100) := 'PAYCURRENCYUNIT';
pDATATYPE VARCHAR2(100) := 'NVARCHAR2(3) NULL';
pSQL VARCHAR2(32000) := '
ALTER TABLE ' || pTABLENAME || ' ADD ' || pCOLUMNNAME || ' ' || pDATATYPE;
BEGIN
SELECT COUNT(0) INTO COUNTER FROM USER_TAB_COLUMNS WHERE TABLE_NAME=UPPER(pTABLENAME) AND COLUMN_NAME=UPPER(pCOLUMNNAME);
IF COUNTER>0 THEN
dbms_output.put_line(pTABLENAME || ' tablosunda ' || pCOLUMNNAME || ' kolonu var.');
ELSE
EXECUTE IMMEDIATE pSQL;
dbms_output.put_line(pTABLENAME || ' tablosuna' || pCOLUMNNAME || ' kolonu oluÅ?turuldu.');
END IF;
EXCEPTION
WHEN OTHERS THEN
dbms_output.put_line('HATA: ' || pSQL || ' -> SQLERRM: ' || SQLERRM);
END;
/`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions