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Author SHA1 Message Date
shark ff4471b6d6
Merge 11376b5115 into c8b12f0701 2025-07-12 13:33:29 +08:00
lingo-xp c8b12f0701
Implement template parser. (#6474)
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2025-07-10 11:44:25 +08:00
林枸 b1fda6d046 Support parse more variant cases.
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2025-07-07 22:54:36 +08:00
Muhong_Yang 1121b304c2
fix quote parsing in columns (#6471)
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* add dbtype adb_mysql

* Presto/Trino parser fix

* add CTE visit for insertNode

* add keyword config for spark/hive

* support synapse parser

* support synapse parser

* lexer fix: comment character missing

* lexer fix: comment character missing

* fix quote parsing in columns
2025-07-05 00:47:01 +08:00
刘强 11376b5115 add oracle json_table grammar support 2025-05-07 17:17:52 +08:00
14 changed files with 663 additions and 47 deletions

View File

@ -99,6 +99,7 @@ public enum SQLBinaryOperator {
BooleanXor("XOR", 150),
BooleanOr("OR", 160),
Assignment(":=", 169),
Blank("", 170),
PG_And("&&", 140),
PG_ST_DISTANCE("<->", 20);

View File

@ -29,16 +29,30 @@ public class SQLVariantRefExpr extends SQLExprImpl {
private boolean global;
private boolean session;
private boolean templateParameter;
private boolean hasPrefixComma;
private int index = -1;
public SQLVariantRefExpr(String name) {
this.name = name;
if (name.startsWith("${") && name.endsWith("}")) {
this.templateParameter = true;
} else {
this.templateParameter = false;
}
this.hasPrefixComma = true;
}
public SQLVariantRefExpr(String name, SQLObject parent) {
this.name = name;
this.parent = parent;
if (name.startsWith("${") && name.endsWith("}")) {
this.templateParameter = true;
} else {
this.templateParameter = false;
}
this.hasPrefixComma = true;
}
public SQLVariantRefExpr(String name, boolean global) {
@ -70,6 +84,22 @@ public class SQLVariantRefExpr extends SQLExprImpl {
this.name = name;
}
public boolean isTemplateParameter() {
return templateParameter;
}
public void setTemplateParameter(boolean templateParameter) {
this.templateParameter = templateParameter;
}
public boolean isHasPrefixComma() {
return hasPrefixComma;
}
public void setHasPrefixComma(boolean hasPrefixComma) {
this.hasPrefixComma = hasPrefixComma;
}
public void output(StringBuilder buf) {
buf.append(this.name);
}

View File

@ -0,0 +1,237 @@
package com.alibaba.druid.sql.dialect.oracle.ast.expr;
import com.alibaba.druid.sql.ast.*;
import com.alibaba.druid.sql.dialect.oracle.ast.OracleSQLObjectImpl;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
public class OracleJSONTableExpr extends SQLExprImpl implements OracleExpr {
private final List<Column> columns = new ArrayList<Column>();
private SQLExpr expr;
private SQLExpr path;
@Override
public void accept0(OracleASTVisitor v) {
if (v.visit(this)) {
acceptChild(v, expr);
acceptChild(v, path);
acceptChild(v, columns);
}
v.endVisit(this);
}
@Override
public List<SQLObject> getChildren() {
return null;
}
public SQLExpr getExpr() {
return expr;
}
public void setExpr(SQLExpr x) {
if (x != null) {
x.setParent(this);
}
this.expr = x;
}
public SQLExpr getPath() {
return path;
}
public void setPath(SQLExpr x) {
if (x != null) {
x.setParent(this);
}
this.path = x;
}
public List<Column> getColumns() {
return columns;
}
public void addColumn(Column column) {
column.setParent(this);
this.columns.add(column);
}
public static class Column extends OracleSQLObjectImpl {
private final List<Column> nestedColumns = new ArrayList<Column>();
private SQLName name;
private SQLDataType dataType;
private SQLExpr path;
private boolean ordinality;
private boolean exists;
private SQLExpr onError;
private SQLExpr onEmpty;
@Override
public void accept0(OracleASTVisitor v) {
if (v.visit(this)) {
acceptChild(v, name);
acceptChild(v, dataType);
acceptChild(v, path);
acceptChild(v, onEmpty);
acceptChild(v, onError);
}
v.endVisit(this);
}
public SQLName getName() {
return name;
}
public void setName(SQLName x) {
if (x != null) {
x.setParent(this);
}
this.name = x;
}
public SQLDataType getDataType() {
return dataType;
}
public void setDataType(SQLDataType x) {
if (x != null) {
x.setParent(this);
}
this.dataType = x;
}
public SQLExpr getPath() {
return path;
}
public void setPath(SQLExpr x) {
if (x != null) {
x.setParent(this);
}
this.path = x;
}
public boolean isOrdinality() {
return ordinality;
}
public void setOrdinality(boolean ordinality) {
this.ordinality = ordinality;
}
public boolean isExists() {
return exists;
}
public void setExists(boolean exists) {
this.exists = exists;
}
public SQLExpr getOnError() {
return onError;
}
public void setOnError(SQLExpr x) {
if (x != null) {
x.setParent(this);
}
this.onError = x;
}
public SQLExpr getOnEmpty() {
return onEmpty;
}
public void setOnEmpty(SQLExpr x) {
if (x != null) {
x.setParent(this);
}
this.onEmpty = x;
}
public List<Column> getNestedColumns() {
return nestedColumns;
}
public void addNestedColumn(Column column) {
column.setParent(this);
this.nestedColumns.add(column);
}
@Override
public Column clone() {
Column result = new Column();
for(Column nestedColumn : nestedColumns) {
result.addNestedColumn(nestedColumn.clone());
}
if(name != null) {
result.setName(name.clone());
}
if(dataType != null) {
result.setDataType(dataType.clone());
}
if(path != null) {
result.setPath(path.clone());
}
result.setOrdinality(ordinality);
result.setExists(exists);
if(onError != null) {
result.setOnEmpty(onError.clone());
}
if(onEmpty != null) {
result.setOnEmpty(onEmpty.clone());
}
return result;
}
@Override
public boolean equals(Object o) {
if (!(o instanceof Column)) return false;
Column column = (Column) o;
return ordinality == column.ordinality && exists == column.exists && Objects.equals(nestedColumns, column.nestedColumns) && Objects.equals(name, column.name) && Objects.equals(dataType, column.dataType) && Objects.equals(path, column.path) && Objects.equals(onError, column.onError) && Objects.equals(onEmpty, column.onEmpty);
}
@Override
public int hashCode() {
return Objects.hash(nestedColumns, name, dataType, path, ordinality, exists, onError, onEmpty);
}
}
@Override
public boolean equals(Object o) {
if (!(o instanceof OracleJSONTableExpr)) return false;
OracleJSONTableExpr that = (OracleJSONTableExpr) o;
return Objects.equals(columns, that.columns) && Objects.equals(expr, that.expr) && Objects.equals(path, that.path);
}
@Override
public int hashCode() {
return Objects.hash(columns, expr, path);
}
@Override
public SQLExpr clone() {
OracleJSONTableExpr result = new OracleJSONTableExpr();
for(Column column : columns) {
result.addColumn(column.clone());
}
if(expr != null) {
result.setExpr(expr.clone());
}
if(path != null) {
result.setPath(path.clone());
}
return result;
}
@Override
protected void accept0(SQLASTVisitor v) {
this.accept0((OracleASTVisitor) v);
}
}

View File

@ -491,11 +491,103 @@ public class OracleExprParser extends SQLExprParser {
sqlExpr = new SQLIdentifierExpr(lexer.stringVal());
lexer.nextToken();
return primaryRest(sqlExpr);
case IDENTIFIER:
// if match json_table, then process and return OracleJSONTableExpr object. else, continue invoke primary()
if (lexer.identifierEquals("JSON_TABLE")) {
lexer.nextToken();
accept(Token.LPAREN);
OracleJSONTableExpr jsonTable = new OracleJSONTableExpr();
jsonTable.setExpr(this.expr());
accept(Token.COMMA);
jsonTable.setPath(this.expr());
acceptIdentifier("COLUMNS");
accept(Token.LPAREN);
for (; lexer.token() != Token.RPAREN; ) {
jsonTable.addColumn(parseJsonTableColumn());
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
accept(Token.RPAREN);
accept(Token.RPAREN);
return jsonTable;
}
default:
return super.primary();
}
}
protected OracleJSONTableExpr.Column parseJsonTableColumn() {
OracleJSONTableExpr.Column column = new OracleJSONTableExpr.Column();
SQLName name = this.name();
column.setName(name);
if (lexer.token() == Token.FOR) {
lexer.nextToken();
acceptIdentifier("ORDINALITY");
column.setOrdinality(true);
} else {
boolean nested = name instanceof SQLIdentifierExpr
&& name.nameHashCode64() == FnvHash.Constants.NESTED;
if (!nested) {
column.setDataType(
this.parseDataType());
}
if (lexer.token() == Token.EXISTS) {
lexer.nextToken();
column.setExists(true);
}
if (lexer.identifierEquals(FnvHash.Constants.PATH)) {
lexer.nextToken();
column.setPath(
this.primary());
}
if (name instanceof SQLIdentifierExpr
&& name.nameHashCode64() == FnvHash.Constants.NESTED) {
acceptIdentifier("COLUMNS");
accept(Token.LPAREN);
for (; lexer.token() != Token.RPAREN; ) {
OracleJSONTableExpr.Column nestedColumn = parseJsonTableColumn();
column.addNestedColumn(nestedColumn);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
accept(Token.RPAREN);
}
for (int i = 0; i < 2; ++i) {
if (lexer.identifierEquals("ERROR")
|| lexer.token() == Token.DEFAULT
|| lexer.token() == Token.NULL) {
if (lexer.token() == Token.DEFAULT) {
lexer.nextToken();
}
SQLExpr expr = this.expr();
accept(Token.ON);
if (lexer.identifierEquals("ERROR")) {
lexer.nextToken();
column.setOnError(expr);
} else {
acceptIdentifier("EMPTY");
column.setOnEmpty(expr);
}
}
}
}
return column;
}
@Override
protected SQLExpr methodRest(SQLExpr expr, boolean acceptLPAREN) {
if (acceptLPAREN) {

View File

@ -45,6 +45,22 @@ public interface OracleASTVisitor extends SQLASTVisitor {
default void endVisit(OracleOuterExpr x) {
}
default boolean visit(OracleJSONTableExpr x) {
return true;
}
default void endVisit(OracleJSONTableExpr x) {
}
default boolean visit(OracleJSONTableExpr.Column x) {
return true;
}
default void endVisit(OracleJSONTableExpr.Column x) {
}
default void endVisit(OracleSelectJoin x) {
}

View File

@ -2995,4 +2995,77 @@ public class OracleOutputVisitor extends SQLASTOutputVisitor implements OracleAS
}
return false;
}
public boolean visit(OracleJSONTableExpr x) {
print0(ucase ? "JSON_TABLE(" : "json_table(");
x.getExpr().accept(this);
print(',');
x.getPath().accept(this);
incrementIndent();
println();
print0(ucase ? "COLUMNS (" : "columns (");
incrementIndent();
println();
printlnAndAccept(x.getColumns(), ",");
decrementIndent();
println();
print(')');
decrementIndent();
println();
print(')');
return false;
}
public boolean visit(OracleJSONTableExpr.Column x) {
x.getName().accept(this);
if (x.isOrdinality()) {
print0(ucase ? " FOR ORDINALITY" : " for ordinality");
}
SQLDataType dataType = x.getDataType();
if (dataType != null) {
print(' ');
dataType.accept(this);
}
if (x.isExists()) {
print0(ucase ? " EXISTS" : " exists");
}
SQLExpr path = x.getPath();
if (path != null) {
print0(ucase ? " PATH " : " path ");
path.accept(this);
}
List<OracleJSONTableExpr.Column> nestedColumns = x.getNestedColumns();
if (nestedColumns.size() > 0) {
print0(ucase ? " COLUMNS (" : " columns (");
printAndAccept(nestedColumns, ", ");
print(')');
}
SQLExpr onEmpty = x.getOnEmpty();
if (onEmpty != null) {
print(' ');
if (!(onEmpty instanceof SQLNullExpr || onEmpty instanceof SQLIdentifierExpr)) {
print0(ucase ? "DEFAULT " : "default ");
}
onEmpty.accept(this);
print0(ucase ? " ON EMPTY" : " on empty");
}
SQLExpr onError = x.getOnError();
if (onError != null) {
print(' ');
if (!(onEmpty instanceof SQLNullExpr || onEmpty instanceof SQLIdentifierExpr)) {
print0(ucase ? "DEFAULT " : "default ");
}
onError.accept(this);
print0(ucase ? " ON ERROR" : " on error");
}
return false;
}
}

View File

@ -2278,7 +2278,7 @@ public class Lexer {
if (ch != ':' && ch != '#' && ch != '$' && !(ch == '@' && dialectFeatureEnabled(ScanVariableAt))) {
throw new ParserException("illegal variable. " + info());
}
boolean templateParameter = false;
mark = pos;
bufPos = 1;
char ch;
@ -2296,13 +2296,14 @@ public class Lexer {
boolean ident = false;
for (; ; ) {
ch = charAt(++pos);
if (isEOF() || ch == ';' || ch == '' || ch == '\r' || ch == '\n') {
if (isEOF() || (templateParameter && (ch == ';' || ch == '' || ch == '\r'))) {
pos--;
bufPos--;
break;
}
if (ch == '}' && !ident) {
templateParameter = false;
if (isIdentifierChar(charAt(pos + 1))) {
bufPos++;
ident = true;
@ -2313,6 +2314,7 @@ public class Lexer {
if (ident && ch == '$') {
if (charAt(pos + 1) == '{') {
templateParameter = true;
bufPos++;
ident = false;
continue;
@ -2323,7 +2325,7 @@ public class Lexer {
if (isWhitespace(ch)) {
pos--;
break;
} else if (ch == ',' || ch == ')' || ch == '(' || ch == ';') {
} else if (ch == ',' || ch == ')' || ch == '(') {
pos--;
break;
}

View File

@ -2927,8 +2927,7 @@ public class SQLExprParser extends SQLParser {
SQLSelectOrderByItem item = parseSelectOrderByItem();
item.setParent(parent);
items.add(item);
while (lexer.token == Token.COMMA) {
lexer.nextToken();
while (lexer.nextIf(Token.COMMA) || (item.getExpr() instanceof SQLVariantRefExpr && lexer.token == IDENTIFIER)) {
item = parseSelectOrderByItem();
item.setParent(parent);
items.add(item);
@ -3532,6 +3531,14 @@ public class SQLExprParser extends SQLParser {
SQLBinaryOperator operator = andRestGetAndOperator();
expr = new SQLBinaryOpExpr(expr, operator, rightExp, dbType);
} else if (token == Token.VARIANT) {
String value = lexer.stringVal();
lexer.nextToken();
SQLExpr variantExpr = new SQLVariantRefExpr(value);
if (lexer.token == Token.IN) {
variantExpr = inRest(variantExpr);
}
expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.Blank, variantExpr, dbType);
} else {
break;
}
@ -3619,6 +3626,14 @@ public class SQLExprParser extends SQLParser {
SQLBinaryOperator op = orRestGetOrOperator();
expr = new SQLBinaryOpExpr(expr, op, rightExp, dbType);
} else if (lexer.token == Token.VARIANT) {
String value = lexer.stringVal();
lexer.nextToken();
SQLExpr variantExpr = new SQLVariantRefExpr(value);
if (lexer.token == Token.IN) {
variantExpr = inRest(variantExpr);
}
expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.Blank, variantExpr, dbType);
} else {
break;
}
@ -3977,6 +3992,11 @@ public class SQLExprParser extends SQLParser {
return expr;
}
break;
case VARIANT:
rightExp = new SQLVariantRefExpr(lexer.stringVal);
expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.Blank, rightExp, dbType);
lexer.nextToken();
return expr;
default:
return expr;
}
@ -5946,6 +5966,9 @@ public class SQLExprParser extends SQLParser {
String alias;
List<String> aliasList = null;
if (expr instanceof SQLVariantRefExpr && ((SQLVariantRefExpr) expr).isTemplateParameter() && lexer.token != AS) {
alias = null;
} else {
switch (lexer.token) {
case FULL:
case TABLESPACE:
@ -5960,13 +5983,10 @@ public class SQLExprParser extends SQLParser {
} else if (lexer.token == Token.LPAREN) {
lexer.nextToken();
aliasList = new ArrayList<String>();
for (; ; ) {
String stringVal = lexer.stringVal();
lexer.nextToken();
aliasList.add(stringVal);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
@ -5987,6 +6007,7 @@ public class SQLExprParser extends SQLParser {
alias = as();
break;
}
}
if (alias == null && isEnabled(SQLParserFeature.SelectItemGenerateAlias)
&& (!(expr instanceof SQLName))

View File

@ -756,6 +756,7 @@ public class SQLSelectParser extends SQLParser {
case BANGEQ:
case LIKE:
case NOT:
case VARIANT:
where = this.exprParser.relationalRest(where);
break;
default:
@ -1122,11 +1123,16 @@ public class SQLSelectParser extends SQLParser {
protected void parseSelectList(SQLSelectQueryBlock queryBlock) {
final List<SQLSelectItem> selectList = queryBlock.getSelectList();
boolean hasComma = true;
for (; ; ) {
final SQLSelectItem selectItem = this.exprParser.parseSelectItem();
selectList.add(selectItem);
selectItem.setParent(queryBlock);
if (!hasComma && selectItem.getExpr() instanceof SQLVariantRefExpr) {
SQLVariantRefExpr sqlVariantRefExpr = (SQLVariantRefExpr) selectItem.getExpr();
sqlVariantRefExpr.setHasPrefixComma(false);
hasComma = true;
}
//https://github.com/alibaba/druid/issues/5708
if (lexer.hasComment()
&& lexer.isKeepComments()
@ -1136,8 +1142,15 @@ public class SQLSelectParser extends SQLParser {
}
if (lexer.token != Token.COMMA) {
if (lexer.token == Token.VARIANT) {
hasComma = false;
continue;
} else if (selectItem.getExpr() instanceof SQLVariantRefExpr && ((SQLVariantRefExpr) selectItem.getExpr()).isTemplateParameter() && lexer.token != Token.FROM) {
continue;
} else {
break;
}
}
int line = lexer.line;
lexer.nextToken();

View File

@ -222,11 +222,11 @@ public class SQLStatementParser extends SQLParser {
case SELECT: {
MySqlHintStatement hintStatement = null;
if (i == 1
&& statementList.size() > 0
&& !statementList.isEmpty()
&& statementList.get(statementList.size() - i) instanceof MySqlHintStatement) {
hintStatement = (MySqlHintStatement) statementList.get(statementList.size() - i);
} else if (i > 0 && dialectFeatureEnabled(ParseStatementListSelectUnsupportedSyntax) && !semi
&& !(statementList.size() > 0 && statementList.get(statementList.size() - i).isAfterSemi())
&& !(!statementList.isEmpty() && statementList.size() - i >= 0 && statementList.get(statementList.size() - i).isAfterSemi())
) {
throw new ParserException("syntax error. " + lexer.info());
}

View File

@ -586,9 +586,12 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
lineItemCount = 0;
println();
}
if (selectItem.getExpr() instanceof SQLVariantRefExpr && !((SQLVariantRefExpr) selectItem.getExpr()).isHasPrefixComma()) {
print0(" ");
} else {
print0(", ");
}
}
if (selectItem.getClass() == SQLSelectItem.class) {
this.visit(selectItem);
@ -1048,7 +1051,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
&& ((SQLIdentifierExpr) right).getName().equalsIgnoreCase("NOTFOUND")) {
printOpSpace = false;
}
if (printOpSpace) {
if (printOpSpace && operator != SQLBinaryOperator.Blank) {
print(' ');
}
}
@ -1569,7 +1572,12 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
if (x.isParenthesized()) {
print('(');
}
printName0(x.getName());
String replacedName = x.getName();
if (x.getParent() instanceof SQLBinaryOpExpr
|| x.getParent() instanceof SQLSelectItem) {
replacedName = replaceQuota(x.getName());
}
printName0(replacedName);
if (x.getCollate() != null) {
String collate = x.getCollate();
print(" COLLATE ");

View File

@ -0,0 +1,45 @@
package com.alibaba.druid.oracle;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleJSONTableExpr;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitorAdapter;
import com.alibaba.druid.sql.parser.SQLStatementParser;
import junit.framework.TestCase;
import org.junit.Assert;
import java.util.List;
/**
* Created by pku_liuqiang on 2025/5/7.
* 类说明
*/
public class OracleJsonTableTest extends TestCase {
public void testLimit() {
String sql = "select a1.* " +
"from aaa a1 left join " +
"JSON_TABLE(a1.jsondata, '$[*]' COLUMNS ( id NUMBER PATH '$.id', code VARCHAR2(100) path '$.code')) b1 on a1.id=b1.id";
SQLStatementParser parser = new OracleStatementParser(sql);
List<SQLStatement> stmtList = parser.parseStatementList();
OracleASTVisitor visitor = new OracleASTVisitorAdapter() {
@Override
public boolean visit(OracleJSONTableExpr x) {
Assert.assertNotNull(x.getExpr());
Assert.assertNotNull(x.getPath());
Assert.assertEquals(2, x.getColumns().size());
return super.visit(x);
}
@Override
public boolean visit(OracleJSONTableExpr.Column x) {
Assert.assertNotNull(x.getName());
Assert.assertNotNull(x.getDataType());
Assert.assertNotNull(x.getPath());
return super.visit(x);
}
};
stmtList.get(0).accept(visitor);
}
}

View File

@ -1,3 +1,65 @@
select c from b where c=1 ${if(len(a)=0,'and 1=1',"and a>0")} ${if(len(a)=0,'and 1=1',"and a>0")}
--------------------
SELECT c
FROM b
WHERE c = 1 ${if(len(a)=0,'and 1=1',"and a>0")} ${if(len(a)=0,'and 1=1',"and a>0")}
------------------------------------------------------------------------------------------------------------------------
select ${if(len(a)=0,' 1=1 ',"c")} ${if(len(a)=0,' 1=1 ',"c")} from b
--------------------
SELECT ${if(len(a)=0,' 1=1 ',"c")}, ${if(len(a)=0,' 1=1 ',"c")}
FROM b
------------------------------------------------------------------------------------------------------------------------
select a from test where 1=1 ${if(a=1, "and b","and c")} in d
--------------------
SELECT a
FROM test
WHERE 1 = 1 ${if(a=1, "and b","and c")} IN (d)
------------------------------------------------------------------------------------------------------------------------
select a from test where 1=1
and (
a.report_item_code in ('${gFinReportItem}') or a.report_item_code ='B002'
${if(find('E069',gFinReportItem)>0," or (c.yn_offset_report = 'Y' and a.report_item_code ='E06802') "," ")}
)
--------------------
SELECT a
FROM test
WHERE 1 = 1
AND (a.report_item_code IN ('${gFinReportItem}')
OR a.report_item_code = 'B002' ${if(find('E069',gFinReportItem)>0," or (c.yn_offset_report = 'Y' and a.report_item_code ='E06802') "," ")})
------------------------------------------------------------------------------------------------------------------------
select ${if(len(a)=0,' 1=1 ',"c")}, ${if(len(a)=0,' 1=1 ',"c")} from b
--------------------
SELECT ${if(len(a)=0,' 1=1 ',"c")}, ${if(len(a)=0,' 1=1 ',"c")}
FROM b
------------------------------------------------------------------------------------------------------------------------
select b.merge_region_code as region_code,b.merge_region_name as region_name,b.govern_region_area_union as region_area_subtotal
${if(gRegionAreaLevel='合并营运区',",b.govern_region_area_union as region_area_code,b.govern_region_area_union as region_area_name",",b.region_area_code as region_area_code,b.region_area_name as region_area_name")}
-- ${if(len(gQtrMonth)=5,"/*","")}
,sum(case when a.stat_date = ${gQtrMonth} then a.period_loc_amt else 0 end) as bq_amt
from b
--------------------
SELECT b.merge_region_code AS region_code, b.merge_region_name AS region_name, b.govern_region_area_union AS region_area_subtotal ${if(gRegionAreaLevel='合并营运区',",b.govern_region_area_union as region_area_code,b.govern_region_area_union as region_area_name",",b.region_area_code as region_area_code,b.region_area_name as region_area_name")} -- ${if(len(gQtrMonth)=5,"/*","")}
, sum(CASE
WHEN a.stat_date = ${gQtrMonth} THEN a.period_loc_amt
ELSE 0
END) AS bq_amt
FROM b
------------------------------------------------------------------------------------------------------------------------
select
${if(gGyzy_hz=='G'," buyer_name as buyer_name, "," syr as buyer_name, ")}
substringUTF8(buyer_name,1,positionUTF8(buyer_name,'(')-1) as tg
from a
--------------------
SELECT ${if(gGyzy_hz=='G'," buyer_name as buyer_name, "," syr as buyer_name, ")}
, substringUTF8(buyer_name, 1, positionUTF8(buyer_name, '(') - 1) AS tg
FROM a
------------------------------------------------------------------------------------------------------------------------
select c from b where c=1 ${if(len(a)=0,'and 1=1',"and a>0")} ${if(len(a)=0,'and 1=1',"and a>0")}
--------------------
SELECT c
FROM b
WHERE c = 1 ${if(len(a)=0,'and 1=1',"and a>0")} ${if(len(a)=0,'and 1=1',"and a>0")}
------------------------------------------------------------------------------------------------------------------------
--test
select a from b
--------------------

View File

@ -12,6 +12,22 @@ select * from [test].[test]
SELECT *
FROM [test].[test]
------------------------------------------------------------------------------------------------------------------------
CREATE VIEW [a].[b]
AS SELECT
*
, [c] = DATEDIFF(MILLISECOND, request_time, GETDATE()) / 1000.0
FROM
tbl
WHERE
[state] = 'Queued';
--------------------
CREATE VIEW [a].[b]
AS
SELECT *
, [c] = DATEDIFF(MILLISECOND, request_time, GETDATE()) / 1000.0
FROM tbl
WHERE [state] = 'Queued';
------------------------------------------------------------------------------------------------------------------------
USE AdventureWorks2008R2
--------------------
USE AdventureWorks2008R2